![\"cool-season](\"https://wp.wikilawn.com/wp-content/uploads/2023/07/cool-season-and-warm-season-grass-map.jpg\")
You cannot create an attractive and healthy lawn just by eliminating weeds. It is also essential to feed your grass the necessary nutrients. Weed and feed products allow you to check both these lawn care tasks off your list in one go. This article will explore how to use weed and feed for your lawn. […]
\n","content":"\nYou cannot create an attractive and healthy lawn just by eliminating weeds. It is also essential to feed your grass the necessary nutrients. Weed and feed products allow you to check both these lawn care tasks off your list in one go. This article will explore how to use weed and feed for your lawn.
\n\n\n\nThese products are designed not only to control weeds but also to foster healthy, thriving, green grass. In addition to how to use weed and feed, this article also discusses what weed and feed is, how it works, and how it can be a friend or foe.
\n\n\nIt is best to apply weed and feed when the temperature is between 60 and 90 degrees Fahrenheit during the day. Most areas of the country experience these temperatures in late spring and early fall.
\n\n\n\nIt is easier to manage perennial weeds and several types of annual weeds during this time of year. Spring and fall are also the best times to fertilize your lawn, depending on your grass type – late spring for warm-season grasses, fall for cool-season grasses.
\n\n\nInfographic by Juan Rodriguez
\n\n\n\nProducts with nitrogen should not be used until the soil temperature at a depth of 4 inches is consistently 65 degrees Fahrenheit. If the product has potassium instead of nitrogen, it can be applied during the end of winter or early spring.
\n\n\n\nKeep in mind that grass should be fertilized at specific times and intervals to remain healthy. Weed killers must also be applied at specific times of year to be effective. The proper timing for fertilizer and weed control doesn’t always overlap, which is one reason why weed and feed can be bad for your lawn.
\n\n\n\nDo not apply weed and feed more than twice annually, and do not use the products in extreme temperatures, hot spells, droughts, or on windy days.
\n\n\n\n\n\n\n\nUsing weed and feed takes pre-planning to make sure the product works. Here are some things you can do before applying weed and feed to ensure the best possible results:
\n\n\n\n— Select a day to apply weed and feed when it is not forecasted to rain for about a week. Water will wash away the product before it can take effect.
— For new lawns recently seeded, do not apply weed and feed until the grass has grown enough that you’ve had to mow it twice.
— About two days before you apply weed and feed, mow your grass to a normal height. This will help the weed and feed absorb evenly into your lawn.
— Watering your grass helps granules adhere to the weeds. But do not water it too much, as it will have an adverse effect. The grass should be slightly damp when you apply the product.
![\"hand-held](\"https://wp.wikilawn.com/wp-content/uploads/2021/03/rsz_114848000106_62e914cb15_c.jpg\")
Photo Credit: Jerry Norbury / Flickr / CC BY-ND 2.0
\n\n\n\nMake sure you use the proper tools to apply weed and feed and wear protective clothing and accessories. You do not want to be exposed to these toxic chemicals any more than necessary.
\n\n\n\nTools needed:
\n\n\n\n— Sprayer for liquid weed and feed
— Drop-type spreader or rotary spreader for granules
Steps to apply weed and feed:
\n\n\n\n— For liquid weed and feed, mix and spray as per the product label’s directions.
— For granules, follow the product label’s instructions for adjusting the spreader settings.
— Open the spreader as per the product’s directions.
— Add the weed and feed in the amount indicated by the package instructions.
— If you are applying near plants you do not wish to kill, place plastic over them or use a drop spreader to protect the vegetation.
— Start at the edge of your lawn and go back and forth in parallel lines, spraying or spreading the weed and feed product consistently as you go. Move similarly to how you would if you were mowing, but overlap yourself slightly. This ensures every area is covered.
— Do not water or mow your lawn after applying weed and feed. Follow the product’s instructions for when to do so for granules and liquid products. If your product has no instructions, see our article on when to water the lawn after applying weed and feed.
![\"caution](\"https://wp.wikilawn.com/wp-content/uploads/2023/08/224f4055-1667-42b4-b7d2-082a567c5f63-1.jpg\")
Photo Credit: ArtBoyMB / Canva Pro / License
\n\n\n\nWeed and feed products contain a combination of dangerous chemicals, like MCPP, 2,4-D, and dicamba. Some of these have been linked to chronic toxicity and cancer. Keep children and pets out of the treated area for as long as possible.
\n\n\n\nWait until after a heavy downpour before allowing them back in the yard. If you used a granular product, make sure you can no longer see the granules.
\n\n\n\nIf you would rather use a product that doesn’t put your loved ones at risk, see our list of pet-safe weed killers, which are safe to use around children, too.
\n\n\n\n\n\n\n\n![\"Crabgrass](\"https://wp.wikilawn.com/wp-content/uploads/2023/03/Large-crabgrass.jpg\")
Photo Credit: NY State IPM Program at Cornell University / Flickr / CC BY 2.0
\n\n\n\nHere are some reasons your weed and feed application may not have worked:
\n\n\n\n— These products only work on broadleaf weeds and not grassy weeds like crabgrass. To treat crabgrass, you’ll need a product with a specific crabgrass preventer. Read the label to identify which weeds the product targets.
— You may have watered the grass too soon, or it may have rained too soon after the weed and feed application.
— Weeds must be mature and actively growing for weed and feed to be effective. So, you may have applied it at the wrong time in the weed’s life cycle.
— You did not follow all the prepping steps.
“Weed & feed” is what pre-emergent and post-emergent herbicides are called when they include a lawn fertilizer to nourish the grass. These products can improve your grass when applied at the right time. Improved, healthy grass reduces the chances of weeds sprouting.
\n\n\n\nPre-Emergent Weed and Feed: Most weed and feed products are post-emergents. They should be applied before weeds sprout to prevent the weed seeds from germinating. Some, like Scott’s Turf Builder, offer options with crabgrass preventer.
\n\n\n\nPost-Emergent Weed and Feed: Weed and feed post-emergents consist of dicamba and other chemicals that attack broadleaf weeds like dollarweed, dandelions, and plantain. They kill weeds that are actively growing, and they work most effectively when the weeds are young and vulnerable.
\n\n\n\nWhen a post-emergent weed and feed is applied, the weed’s foliage absorbs the toxins. Dicamba is a chemical that penetrates the plant’s roots, making the post-emergent more toxic to the weed. Homeowners should be aware that other plants also absorb the chemical and can be damaged. Be careful not to apply post-emergent weed and feeds on plants you want to keep around.
\n\n\n\nPre-Emergent and Post-Emergent Weed and Feed: Some products contain chemicals that are pre-emergent and post-emergent, which means they can kill currently growing weeds and prevent weeds from growing in the future. The chemical atrazine is an example.
\n\n\n\n\n\n\n\n![\"bags](\"https://wp.wikilawn.com/wp-content/uploads/2023/08/e7e9bd22-a137-4af7-8800-a8c9ed2b9213.jpg\")
Photo Credit: Srinuan Hirunwat / Canva Pro / License
\n\n\n\nSelecting the right weed and feed is similar to choosing the appropriate weed killer or fertilizer separately. Be familiar with the weeds you need to eliminate and the type of grass you have. Make sure you know the best time to apply fertilizer to your lawn.
\n\n\n\nRead weed and feed labels to ensure the herbicide kills the type of weeds you have, determine if your grass has to be at a certain stage to use the product, and make sure the time of year to apply the herbicide coincides with the time your grass should be fertilized.
\n\n\n\nHere are some examples of weed and feed chemicals and products. Included are examples of weeds and grass types they can be used on:
\n\n\n\nAce Lawn Weed Killer
\n\n\n\n— Attacks broadleaf weeds
— Safe to use on: Bermudagrass, Kentucky bluegrass, and Zoysiagrass
MCPP, 2,4-D, and Dicamba Mixture
\n\n\n\n— Attacks broadleaf weeds
— Safe to use on: St. Augustinegrass, tall fescue, Bahiagrass
Scotts Turf Builder
\n\n\n\n— Contains 2,4-D and Dicamba
— Controls several weeds, including common weeds like clover, henbit, and chickweed
— Offers products with crabgrass preventer
— Safe to use on: Centipedegrass, Bahiagrass, Kentucky bluegrass, ryegrass, and fescue
How long should you wait before reseeding a lawn after applying weed and feed?
\n\n\n\nWeed and feed can stop seed germination, so you must ensure it is completely absorbed before reseeding. Wait four weeks before planting grass seed. Likewise, waiting four weeks before overseeding your lawn is also best.
\n\n\n\n\n\n\n\nWhen is a lawn treated with herbicides safe for children and pets?
\n\n\n\nAllow a hard rain to wash away any residual from the herbicide. You can also water your grass a few days consecutively before letting children and pets on the grass.
\n\n\n\nWhen not in use, keep herbicides out of the reach of children and pets. These chemicals can be just as harmful to pets as they are to humans.
\n\n\n\n\n\n\n\nHow can I reduce runoff from herbicides?
\n\n\n\nHerbicides that have spilled over onto hard surfaces like sidewalks or roads can be washed into storm drains. Use a rake or broom to push the chemicals back into your grass. This will reduce runoff that can harm the environment.
\n\n\n\n\n\n\n\nYou have a few choices to treat weeds. Whether you select pre-emergent, post-emergent, or weed and feed products depends on your specific situation. For example, the types of weeds you have, the stage of weed accumulation, and your grass type are all determinants.
\n\n\n\nYou may also base your decision on how the toxicity of chemicals can affect your family and choose DIY weed killer mixtures that are safe for humans and pets. In this case, you would have to fertilize your grass separately, which is not such a bad thing. Grass clippings left on the lawn after mowing are a natural fertilizer. If you have lawn weeds, avoid leaving grass clippings, as this will spread the weeds.
\n\n\n\nIt is important to practice good lawn care habits to maintain a healthy green lawn and keep lawn weeds from returning. Fertilizing, watering, and mowing your grass appropriately will help reduce the chances of weed growth. Treating your grass for diseases is also imperative.
\n\n\n\nAnd if you don’t feel like figuring out weed and feed and other lawn care products yourself, let WikiLawn connect you with qualified lawn care professionals in your area to keep your lawn healthy and appealing for you.
\n\n\n\nMain Photo Credit: Jon Rehg / Canva Pro / License
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\n","content":"\nWeed and feed is the perfect way to multitask without extra effort. You can zap away weeds and give your grass nourishment at the same time. While that may be true, there are reasons why weed and feed is bad for your lawn. This article presents some of those reasons. Keep reading for information that will help you decide if weed and feed products are right for your yard.
\n\n\nWeed and feed can be beneficial if used at the right time and correctly. However, many factors determine the product’s usefulness versus the adverse effects it can have. Here are seven reasons weed and feed is bad for your lawn:
\n\n\n\n\n\n\n\nPhoto Credit: ArtBoyMB / Canva Pro / License
\n\n\n\nWeed and feed products contain a combination of dangerous chemicals. The chemical 2, 4-D has been found to cause acute and chronic toxicity and organ toxicity. The International Agency for Research considers it to be a possible carcinogen. It is also an endocrine disruptor, which means it disrupts the normal functioning of the body’s hormones.
\n\n\n\nChildren are affected as they come into physical contact with it, allowing the chemicals to be absorbed into their skin, and touch their faces or put their fingers or other objects they have touched after exposure into their mouths. Chemicals are also tracked into the house, increasing exposure beyond a child’s normal outside contact.
\n\n\n\n\n\n\n\nLawns are not usually covered with weeds as much as they are with grass. But when you use granular weed and feed products, a spreader is typically used, and the entire lawn is covered.
\n\n\n\nMore of the weed control product is used than necessary, and it is used on a larger area than necessary. So, even though you have a small percentage of broadleaf weeds, like dandelions, weed and feed products are applied to the entire lawn, whether that section has weeds or not. You compromise the health of the grass because it is getting too much herbicide. This also increases how much is released into the environment.
\n\n\n\n\n\n\n\nAs stated previously, weed and feed is spread over the entire lawn instead of only the part that is having the weed problem. This use of more chemicals means more runoff into storm drains, affecting the water supply and aquatic life. It also means more toxic substances are released into the air we breathe.
\n\n\n\n\n\n\n\n![\"sparse](\"https://wp.wikilawn.com/wp-content/uploads/2023/06/Sparse-Bahiagrass.jpg\")
Photo Credit: Harry Rose / Flickr / CC BY 2.0
\n\n\n\nWeed and feed products also stop other plant seeds from germinating, including grass. Dicamba is an ingredient in many weed and feed combos. The chemical penetrates the roots of plants, destroying the vegetation. Do not use weed and feed on grass or other plants that have been recently seeded.
\n\n\n\n\n\n\n\nFor weed killer to be effective, it must be used when weeds are mature and actively growing. Pre-emergent herbicides and post-emergent herbicides should be used in the spring and fall. However, these are not necessarily the best times to fertilize your lawn. You may end up putting fertilizer on your grass at a bad time when using weed and feed products to treat weeds.
\n\n\n\nLikewise, you may apply weed and feed products when the time to fertilize your lawn comes around, but the weed control does not work because the weeds are not mature and actively growing, or it is not in the time period when herbicides are most effective.
\n\n\n\nApplying fertilizer or herbicide at the wrong time of year can not only render the products ineffective, but it can also actively damage your grass. For example, nitrogen fertilizers can hurt your grass if the temperature isn’t within the right range when you apply them.
\n\n\n\nThe timing of when you reseed or overseed your lawn may also conflict with when you want to use weed and feed products. An application of weed and feed products after seeding your grass can stop the grass seeds from germinating and kill them before they ever sprout.
\n\n\n\n\n\n\n\n![\"\"](\"https://wp.wikilawn.com/wp-content/uploads/2023/08/749de019-9871-4cb0-b5d1-b034aea7bffa.jpg\")
Photo Credit: Bk_Kang / Canva Pro / License
\n\n\n\nYou may not have children, but you have fur babies. Chemical fertilizers and weed-killing products also pose dangers to pets. The toxins can cause serious illness, including cancer, and can even lead to death. Fur babies are exposed the same way as humans, as they absorb the chemicals into their bodies by walking on the lawn, inhaling the substances by sniffing, and ingesting them by licking their paws.
\n\n\n\nIf you want to kill weeds in a way that doesn’t put your pet’s health at risk, see our list of pet-safe weed killers.
\n\n\n\n\n\n\n\nTree roots expand further than under the tree, meaning they can be under your grass, too. Multiple applications of weed and feed on your lawn can damage the roots of trees and shrubs. These plants can sustain substantial damage when weed and feed is applied during the plants’ active growth season, which is usually in the spring and fall.
\n\n\n\n\n\n\n\nThere are manufactured products and do-it-yourself weed control methods that are human and pet-safe, unlike weed and feed products, which use harsh chemicals. Some safe alternatives can even be used to treat weeds and fertilize the lawn at the same time.
\n\n\n\nLook for products that do not contain chemicals like glyphosate. Read labels and choose those with natural ingredients like vinegar. Here are some safe, organic methods you can use to control weeds and/or fertilize your lawn.
\n\n\n\n\n\n\n\n![\"Hands](\"https://wp.wikilawn.com/wp-content/uploads/2023/06/crabgrass-1.jpg\")
Photo Credit: Sergii Petruk / Canva Pro / License
\n\n\n\nYou can pull up dandelions and other broadleaf weeds when you first see them sprouting. Using a dandelion fork may make it easier to extract the weed and get as much of the taproot out as possible.
\n\n\n\n\n\n\n\n![\"white](\"https://wp.wikilawn.com/wp-content/uploads/2023/07/white-vinegar.jpg\")
Photo Credit: NatureFriend from Pixabay / Canva Pro / License
\n\n\n\nYou can use boiling water or an herbicidal version of vinegar to kill the aboveground parts of weeds, then pull up the root systems once the weeds have died. Vinegar and boiling water can kill other plants, so spot-treat weeds individually, and don’t use these methods on or near your grass.
\n\n\n\n\n\n\n\n![\"\"](\"https://wp.wikilawn.com/wp-content/uploads/2023/08/4a16ada4-5ea8-4f9b-8641-f6c78f02e677.jpg\")
Photo Credit: Olga Kriger / Canva Pro / License
\n\n\n\nCorn gluten meal is a safe, organic fertilizer. It contains nitrogen, which is the most important nutrient for making grass greener.
\n\n\n\nAnd although corn gluten meal does not kill weeds that have already grown, it suppresses them. It keeps weed seeds from germinating, acting as a pre-emergent herbicide. Depending on the type of weeds, apply corn gluten meal in early spring or fall.
\n\n\n\n\n\n\n\n![\"Gardener](\"https://wp.wikilawn.com/wp-content/uploads/2023/06/mulchy-copy-1.jpg\")
Photo Credit: artursfoto / Canva Pro / License
\n\n\n\nMulch keeps weeds from sprouting, and if you use organic mulch, it will break down into the soil over time and act as a fertilizer. Mulch has other benefits, too. It protects roots from extreme temperatures and prevents soil erosion.
\n\n\n\nGrass clippings are an example of organic mulch. After mowing your lawn, the clippings can be left on the lawn as a natural fertilizer and weed suppressant. However, don’t use your grass clippings as mulch if there are already weeds growing on your lawn, as this could spread the weed seeds to new areas.
\n\n\n\n\n\n\n\nWeed and feed products contain ingredients to manage weeds and fertilize the grass. They are a two-in-one solution that allows homeowners to prevent or destroy weeds and feed the grass nutrients that enhance the lawn.
\n\n\n\nWeed and feeds come as pre-emergents and post-emergents. Pre-emergent weed and feeds have chemicals that prevent weed seeds from germinating. Post-emergent weed and feeds contain ingredients that kill weeds that have sprouted and are growing.
\n\n\n\nThe lawn fertilizer portion is typically a combination of nitrogen, phosphorous, and potassium, which are the three most important nutrients for plants.
\n\n\n\nIf you would like to try weed and feed despite the downsides covered in this article, see our guide on how to use weed and feed. You’ll also need to make sure you know when to water your lawn after applying weed and feed for the best results.
\n\n\n\n\n\n\n\nHow can you reduce your chances of getting weeds?
\n\n\n\nThe best way to deal with weed problems is to be proactive. Practicing proper lawn care and maintenance is the best strategy to prevent weeds. A healthy lawn makes it harder for weeds to sprout. Fertilize, water, and mow your grass properly and at the right intervals. Also, check and treat your grass for diseases and insects.
\n\n\n\n\n\n\n\nWhat are some conveniences of weed and feed?
\n\n\n\nWeed and feed products can save you time and effort. Here are some of their benefits:
\n\n\n\n— They allow you to treat weeds and provide your grass with nutrients for a green lawn in one application.
— These products kill a lot of common weeds, including broadleaf weeds like dandelions and chickweed.
— You can treat a large weed-infested area more quickly.
— These duo lawn care products are widely available at home improvement stores and garden centers.
Are weed and feed products always granules?
\n\n\n\nNo. Some weed and feed products come in liquid form. These chemicals are also dangerous, but you can spot-treat a smaller area by applying the chemicals with a sprayer. This reduces the amount of your lawn exposed to harmful substances and released into the environment.
\n\n\n\nHowever, spot-treating will lead to an unevenly fertilized lawn, which is why we generally recommend fertilizing the lawn and treating for weeds separately.
\n\n\n\n\n\n\n\nThe chemicals in weed and feed products can not only damage your lawn if not used properly, but their use alone can have substantial negative effects on you, your family, and the environment. It may be best to hire a lawn care professional to handle fertilization and weed control for your lawn.
\n\n\n\nExperts come with these advantages:
\n\n\n\n— Expertise to identify lawn weeds to match them with the proper weed-killing products.
— Knowledge of the best products for your situation and when to apply them.
— Ability to determine if you need spot treatments or wider coverage.
— Skills to properly apply the chemicals.
Using the right chemicals the right way reduces unnecessary exposure or mistakes that can cause damage and cost you money and time. For example, if you use a weed and feed that is not a crabgrass preventer and you have crabgrass, you will have to apply even more herbicides to your lawn to correct your mistake and treat the crabgrass.
\n\n\n\n
WikiLawn can connect you with lawn care pros in your area today who can keep your lawn happy and healthy with proper fertilization, weed control, and everything else your grass needs to thrive.
Main Photo Credit: groveb / Canva Pro / License
\n","title":"Why Weed and Feed is Bad for Your Lawn","featured_media":{"localFile":{"childImageSharp":{"fluid":{"aspectRatio":1.5,"src":"/static/caa30b2226f297be3baabe097c6a8500/1789c/lawn-weed-and-feed-1.jpg","srcSet":"/static/caa30b2226f297be3baabe097c6a8500/107df/lawn-weed-and-feed-1.jpg 320w,\n/static/caa30b2226f297be3baabe097c6a8500/293e9/lawn-weed-and-feed-1.jpg 500w,\n/static/caa30b2226f297be3baabe097c6a8500/f2cbb/lawn-weed-and-feed-1.jpg 800w,\n/static/caa30b2226f297be3baabe097c6a8500/1789c/lawn-weed-and-feed-1.jpg 960w,\n/static/caa30b2226f297be3baabe097c6a8500/c26c2/lawn-weed-and-feed-1.jpg 1200w","srcWebp":"/static/caa30b2226f297be3baabe097c6a8500/1dd6e/lawn-weed-and-feed-1.webp","srcSetWebp":"/static/caa30b2226f297be3baabe097c6a8500/67b76/lawn-weed-and-feed-1.webp 320w,\n/static/caa30b2226f297be3baabe097c6a8500/8df11/lawn-weed-and-feed-1.webp 500w,\n/static/caa30b2226f297be3baabe097c6a8500/98a65/lawn-weed-and-feed-1.webp 800w,\n/static/caa30b2226f297be3baabe097c6a8500/1dd6e/lawn-weed-and-feed-1.webp 960w,\n/static/caa30b2226f297be3baabe097c6a8500/3cc96/lawn-weed-and-feed-1.webp 1200w","sizes":"(max-width: 960px) 100vw, 960px"}}}},"yoast_meta":{"yoast_wpseo_title":"Why Weed and Feed is Bad for Your Lawn | Wikilawn","yoast_wpseo_metadesc":"This article reveals the risks of weed and feed to your lawn, including risks to humans, pets, and the environment, plus safer alternatives."}}},{"node":{"id":"fc01ca95-4faa-5ce8-8ef3-c9a4548de41e","slug":"when-to-water-after-weed-and-feed","path":"/blog/when-to-water-after-weed-and-feed/","status":"publish","template":"","format":"standard","author":{"description":"LaShonda Tucker is a freelance writer, poet, and spoken word artist in Atlanta. She earned her masters from the University of Georgia and enjoys playing her violin.","name":"LaShonda Tucker","id":"f7fdb6d3-a89a-5295-963a-aac47afa7cee","path":"/author/lashonda-tucker/","avatar_urls":{"wordpress_96":"https://secure.gravatar.com/avatar/ce61747b62dbfb82f56a8611f2835988?s=96&d=mm&r=g"}},"categories":[{"id":"c16818a6-3923-5fc7-a49b-191ac48bf4d2","name":"Blog","count":81,"path":"/category/blog/"}],"date":"August 7th, 2023","excerpt":"Watering your lawn at the correct time interval after applying weed and feed ensures the product actually works. The type of weed and feed used determines the time frame in which the grass should be watered after administering the product. This article covers when to water the lawn after applying weed and feed, depending on […]
\n","content":"\nWatering your lawn at the correct time interval after applying weed and feed ensures the product actually works. The type of weed and feed used determines the time frame in which the grass should be watered after administering the product. This article covers when to water the lawn after applying weed and feed, depending on the specific type.
\n\n\n\nKeep reading to find out how to get it right the first time.
\n\n\nWhen to water your lawn after applying weed and feed products is just as important as knowing how and when to apply weed and feed. Watering your grass too soon or too late can result in ineffective weed control and keep the fertilizer from creating a healthy lawn full of green grass.
\n\n\n\nFind out below when to water the lawn after applying the different types of weed and feed products.
\n\n\n\n\n\n\n\n![\"A](\"https://wp.wikilawn.com/wp-content/uploads/2023/03/solar-panels-working-20.jpg\")
Photo Credit: groveb / Canva Pro / License
\n\n\n\nPre-emergent weed and feed products require water to help them penetrate the ground to be effective. You can water the grass 12 to 24 hours after application. For the best results, wait at least 24 hours before watering.
\n\n\n\nRain: The rain can help soak the herbicide into the soil. However, do not water the lawn if it rains after you apply weed and feed. Too much water can wash away the treatment.
\n\n\n\n\n\n\n\n![\"Lawn](\"https://wp.wikilawn.com/wp-content/uploads/2023/03/Lawn-Fertilizer-spreader-1.jpg\")
Photo Credit: Dean Clarke / Shutterstock / License
\n\n\n\nHomeowners should use post-emergent weed and feed products when it will be dry for a few days. These products are more sensitive to watering than their pre-emergent counterparts.
\n\n\n\nWait two days before watering the lawn to give the herbicide portion of the weed and feed time to absorb into the leaves of the weeds. If watered before 48 hours, the chemicals are washed away and will not work.
\n\n\n\nRain: Be sure to check the weather forecast and pick a time to apply weed and feed when it is going to be dry for a few days.
\n\n\n\n\n\n\n\n![\"fertilizer](\"https://wp.wikilawn.com/wp-content/uploads/2023/07/fertilizer-for-the-lawn-1.jpg\")
Photo Credit: ronstik / Canva Pro / License
\n\n\n\nFor granular fertilizer to work, it must be watered into the ground to release the lawn food that makes grass healthy and gives you a green lawn. If the fertilizer does not receive water, it can burn the grass if it sits on the lawn during the summer.
\n\n\n\nWait 12 to 24 hours before watering your lawn after applying granular pre-emergent weed and feed.
\n\n\n\nGrass treated with granular post-emergents should not be watered for at least 48 hours.
\n\n\n\n\n\n\n\nUnlike granular products, liquid weed and feed does not require watering to work. And you do not have to wait as long to water the lawn. As a rule of thumb, waiting at least 24 hours is best. Too much watering can render the chemicals ineffective, so be mindful of this when you turn on the sprinklers.
\n\n\n\n\n\n\n\nThe chemicals in these two different types of weed and feed do not mix well. Therefore, homeowners are advised not to use both a pre-emergent and post-emergent at the same time. Here are some reasons why:
\n\n\n\n— They should be watered at different times after application.
— They should be applied at different times to work. Pre-emergents should be used in early spring. Post-emergents should be applied in the late spring.
Weed and feed is a combination of chemicals to treat weeds and fertilize the grass. The lawn fertilizer – the “feed” part – contains nitrogen, phosphorous, and potassium, important plant nutrients. The weed control portion can be either a pre-emergent or post-emergent herbicide.
\n\n\n\nPre-Emergent Weed and Feed: Pre-emergent weed and feed products have herbicides to stop weed seeds from germinating. Pre-emergent products do not kill weeds. Depending on the ingredients, pre-emergent weed and feed inhibits cell division, prevents root growth, or stops enzyme growth to keep weeds from growing in the first place.
\n\n\n\nPost-Emergent Weed and Feed: Post-emergent two-in-one products have chemicals that kill weeds that are already growing. Contact-based products kill the plant parts they come into contact with, which is typically the parts above ground. Systemic post-emergents can be sprayed on any part of the weed and are absorbed into the plant, destroying its entire vascular system.
\n\n\n\n\n\n\n\nPhoto Credit: Srinuan Hirunwat / Canva Pro / License
\n\n\n\nPre-Emergent vs. Post-Emergent: If you want to prevent weeds from growing, you’ll want a pre-emergent weed and feed. A post-emergent weed and feed is best in yards already held hostage by weeds.
\n\n\n\nLiquid vs. Granular: If you want to spot-treat weeds, liquid weed and feed products allow you to target individual weeds. Granular weed and feeds use a spreader to apply to a larger area. If you have a lot of weeds throughout your yard and want to apply chemicals quickly, a granular product may be best.
\n\n\n\nGrass Type: The type of grass is also a part of the decision of which weed and feed to select. Weed and feed labels list which types of grass they can be used on and at what stage. For example, pre-emergents should never be used on turfgrass recently seeded.
\n\n\n\nSome chemicals can be used on warm-season grasses but not on cool-season grasses and vice versa. Scotts Turf Builder is an example of a weed and feed that can be used on both.
\n\n\n\n\n\n\n\nWeed and feed products are conveniently available and can be found at many home improvement brick-and-mortar locations and online stores like Amazon. However, weed and feed can be bad for your lawn for the following reasons:
\n\n\n\n— The best time to fertilize your lawn and the best time to treat weeds are often different.
— The chemicals in weed and feed are dangerous for children and pets.
— Weed products are often only needed in specific areas, while fertilizer is required all across the lawn.
— The harsh chemicals in weed and feed can leach into the surrounding environment.
— Weed and feed can sometimes harm plants other than weeds, including grass, shrubs, and trees.
How long should you wait before mowing the grass after using weed and feed?
\n\n\n\nGive the product time to work. Wait at least three days before you mow the grass.
\n\n\n\n\n\n\n\nWhen can you aerate your lawn after applying weed and feed?
\n\n\n\nYou should wait four weeks after applying weed and feed before aerating your lawn.
\n\n\n\n\n\n\n\nAre liquid and granular weed and feed applied differently?
\n\n\n\nYes. Liquid weed and feed products are applied using a sprayer. Granular weed and feed chemicals are disbursed using a drop-type spreader, rotary spreader, or broadcast spreader.
\n\n\n\n\n\n\n\nShould you water your grass before applying weed and feed?
\n\n\n\nWatering the lawn before applying granular products is helpful. It can help the granules stick to the weeds. Be sure to follow the product’s instructions.
\n\n\n\n\n\n\n\nWhen is it safe for children and pets to come back on the lawn?
\n\n\n\nWait until after a heavy rainfall before allowing your loved ones back on the grass. You can also water your lawn for a few days in a row to be sure the residual from the chemicals is washed away.
\n\n\n\n\n\n\n\nHow soon can a lawn be reseeded after applying pre-emergent herbicide?
\n\n\n\nHomeowners should wait at least 8-10 weeks after applying weed control to reseed a lawn, or the herbicide could kill the grass seeds.
\n\n\n\n\n\n\n\nGetting the timing right on when to water your grass after applying weed and feed will determine if the chemicals work. It will also affect whether you end up with an attractive, healthy lawn.
\n\n\n\nKeeping up with when to water the grass takes time and effort. You could end up spending more time and money correcting your mistake if you do not get it right.
\n\n\n\n
If you prefer to let someone else handle your lawn care chores and eliminate the risk of you messing up the timing, WikiLawn can connect you with lawn care professionals in your area who can help control weeds and maintain your grass for an appealing, healthy lawn.
Main Photo Credit: nenovbrothers / Canva Pro / License
\n","title":"When to Water the Lawn After Applying Weed and Feed ","featured_media":{"localFile":{"childImageSharp":{"fluid":{"aspectRatio":1.5,"src":"/static/86558436837abaae95cbb804d09a1484/1789c/f7585bd1-0824-425a-aba5-552b640c3d8a-1.jpg","srcSet":"/static/86558436837abaae95cbb804d09a1484/107df/f7585bd1-0824-425a-aba5-552b640c3d8a-1.jpg 320w,\n/static/86558436837abaae95cbb804d09a1484/293e9/f7585bd1-0824-425a-aba5-552b640c3d8a-1.jpg 500w,\n/static/86558436837abaae95cbb804d09a1484/f2cbb/f7585bd1-0824-425a-aba5-552b640c3d8a-1.jpg 800w,\n/static/86558436837abaae95cbb804d09a1484/1789c/f7585bd1-0824-425a-aba5-552b640c3d8a-1.jpg 960w,\n/static/86558436837abaae95cbb804d09a1484/c26c2/f7585bd1-0824-425a-aba5-552b640c3d8a-1.jpg 1200w","srcWebp":"/static/86558436837abaae95cbb804d09a1484/1dd6e/f7585bd1-0824-425a-aba5-552b640c3d8a-1.webp","srcSetWebp":"/static/86558436837abaae95cbb804d09a1484/67b76/f7585bd1-0824-425a-aba5-552b640c3d8a-1.webp 320w,\n/static/86558436837abaae95cbb804d09a1484/8df11/f7585bd1-0824-425a-aba5-552b640c3d8a-1.webp 500w,\n/static/86558436837abaae95cbb804d09a1484/98a65/f7585bd1-0824-425a-aba5-552b640c3d8a-1.webp 800w,\n/static/86558436837abaae95cbb804d09a1484/1dd6e/f7585bd1-0824-425a-aba5-552b640c3d8a-1.webp 960w,\n/static/86558436837abaae95cbb804d09a1484/3cc96/f7585bd1-0824-425a-aba5-552b640c3d8a-1.webp 1200w","sizes":"(max-width: 960px) 100vw, 960px"}}}},"yoast_meta":{"yoast_wpseo_title":"When to Water the Lawn After Applying Weed and Feed | Wikilawn","yoast_wpseo_metadesc":"Learn when to water the lawn after applying weed and feed so that weed seeds do not germinate, weeds are killed, and the lawn fertilizer works, too."}}},{"node":{"id":"8163e4ac-da46-5939-9869-d4112710a127","slug":"post-emergent-herbicides","path":"/blog/post-emergent-herbicides/","status":"publish","template":"","format":"standard","author":{"description":"LaShonda Tucker is a freelance writer, poet, and spoken word artist in Atlanta. She earned her masters from the University of Georgia and enjoys playing her violin.","name":"LaShonda Tucker","id":"f7fdb6d3-a89a-5295-963a-aac47afa7cee","path":"/author/lashonda-tucker/","avatar_urls":{"wordpress_96":"https://secure.gravatar.com/avatar/ce61747b62dbfb82f56a8611f2835988?s=96&d=mm&r=g"}},"categories":[{"id":"c16818a6-3923-5fc7-a49b-191ac48bf4d2","name":"Blog","count":81,"path":"/category/blog/"},{"id":"205f24d4-c1e5-5728-bb28-8ba70eecbc7a","name":"Lawn Care","count":432,"path":"/category/lawn-care/"}],"date":"August 7th, 2023","excerpt":"Home is where the heart is, not the weeds. But sometimes homeowners end up sharing their space with these annoying plants. Keep reading to find out how and when to apply post-emergent herbicides to give your yard the makeover it deserves. No matter what kind of weed is growing in your yard, there’s a post-emergent […]
\n","content":"\nHome is where the heart is, not the weeds. But sometimes homeowners end up sharing their space with these annoying plants. Keep reading to find out how and when to apply post-emergent herbicides to give your yard the makeover it deserves. No matter what kind of weed is growing in your yard, there’s a post-emergent herbicide to help you get rid of it.
\n\n\n\nIn this article:
\n\n\n\nThe best time to apply post-emergent herbicides is when weeds are young and actively growing. This is when they are most vulnerable to the active ingredients.
\n\n\n\nTime of Year: Applying in the fall or late spring is best. It is easier to manage perennial weeds and several types of annual weeds during these times of year. Perennial weeds with deep root systems are best treated in the early spring. Homeowners should be aware that herbicides are most effective on weeds that are actively growing.
\n\n\n\nTemperature: Apply post-emergent weed control when the air temperature is less than 85 degrees Fahrenheit and the soil temperature is higher than 55 degrees. You can purchase a soil thermometer online or at your local garden supply store for less than $10 to check the soil temperature.
\n\n\n![\"woman](\"https://wp.wikilawn.com/wp-content/uploads/2023/07/Weed-killer.jpg\")
Photo Credit: karenfoleyphotography / Canva Pro / License
\n\n\n\nWhen Not to Apply Post-Emergent Herbicides:
\n\n\n\nPost-emergent herbicides before rain? Read the product label to determine how soon a treated area can be exposed to water. Some herbicides require water to be activated and kill the plant. On the contrary, rain or watering can render other herbicide products ineffective. Instead of activating ingredients, the water can wash them away.
\n\n\n\n\n\n\n\nRefrain from mowing the lawn about three days before and after using herbicides so weeds can grow enough to absorb the chemicals. Be sure to protect yourself, your family, and your pets. Wear the proper clothing and keep children and pets away from the treated area until it is dry.
\n\n\n\nProtective Apparel to Wear While Applying Herbicides:
\n\n\n\nThis method allows you to target weeds specifically, not your grass or surrounding plants. It’s a good option when there is not a large infestation and/or when you’re using non-selective herbicides that can kill plants other than weeds.
\n\n\n\nHow to Prepare the Herbicide: Read the label and combine the post-emergent herbicide with water (and a surfactant, if needed) as instructed. A surfactant increases the effectiveness of herbicides by helping the chemicals absorb into the weeds better. If the herbicide does not have a built-in surfactant, the label will inform you that you must add it.
\n\n\n\nHow to Apply Spot Treatments: With your mixture, spray each weed individually and thoroughly. Do your best not to get herbicide on the surrounding grass and plants, especially if you’re using a non-selective formula.
\n\n\n\n\n\n\n\nWhen you have many weeds that have taken over your yard, a blanket treatment will allow you to treat the area more efficiently than spot treatments.
\n\n\n\nHow to Prepare the Herbicide: You can use a liquid post-emergent or granular post-emergent herbicide. Mix the liquid product with water as per the label’s instructions. Use a sprayer to apply. For granules, apply using a granular spreader.
\n\n\n\nHow to Apply a Blanket Treatment: Go back and forth over the entire lawn with the sprayer or spreader, applying the herbicide evenly. For granules, it will take about half an inch of water for the herbicide to be activated, so be sure to water your lawn after application.
\n\n\n\nFor any post-emergent treatments, reapply as per the product’s label to maintain weed control.
\n\n\n\n\n\n\n\n![\"A](\"https://wp.wikilawn.com/wp-content/uploads/2023/06/Untitled-design-1.jpg\")
Photo Credit: eleonimages / Canva Pro / License
\n\n\n\nPost-emergent herbicides are used to treat weeds post-growth or after they are sprouting and growing.
\n\n\n\nIf you get to the weeds before they sprout, a pre-emergent herbicide can be used to prevent the weed seeds from germinating in the first place.
\n\n\n\nDithiopyr is a chemical that acts as both a pre and post-emergent herbicide, preventing weeds from germinating and killing them after they are actively growing.
\n\n\n\n\n\n\n\nUnlike pre-emergent herbicides that target weed seeds, post-emergent herbicides attack plant parts, like stems, leaves, and the plant’s root system. Not all post-emergent weed killers work the same way. There are two types: contact-based and systemic.
\n\n\n\nContact-Based Post-Emergent Herbicides: This type of herbicide kills only the plant parts it comes into contact with. It may take several applications. Contact-based herbicide applications typically only target the parts of plants above ground, like the weed’s foliage. It can kill the targeted parts of the plant quickly.
\n\n\n\nSystemic Post-Emergent Herbicides: Systemic herbicides kill weeds completely, even if the herbicide only comes into contact with part of the plant. The chemicals are absorbed and travel throughout the entire plant, attacking its vascular system. This method allows the active ingredients to reach and kill different parts of the plant, like the stems, leaves, and root system, killing the pesky weed.
\n\n\n\nIt’s also important to know that not all herbicides work on all weeds. There are both selective and non-selective post-emergent herbicides.
\n\n\n\nSelective Post-Emergent Herbicides: This type of herbicide targets specific weeds without harming other plants. Selective products list on their labels whether they kill grassy weeds, like crabgrass and goosegrass, or broadleaf weeds, like chickweed and dandelions. You must accurately identify the weed in your yard to choose the right selective herbicide.
\n\n\n\nNon-selective Post-Emergent Herbicides: These herbicides kill all plants they touch, so a sprayer is usually used to apply non-selective herbicides to give weeds a targeted spot treatment that affects the weeds and not other plants.
\n\n\n\n\n\n\n\nMake sure you are correctly identifying the weeds in your yard. Certain weed killers are for specific weeds and may be ineffective on other types of weeds. The type of herbicide you choose should also be labeled for use on your turfgrass type. Otherwise, it may kill your grass along with the weeds.
\n\n\n\nHere are some common active ingredients in post-emergent herbicides, along with the weeds they kill and the grass types they’re safe for.
\n\n\n\nGlyphosate (Roundup):
\n\n\n\nImazaquin (Image):
\n\n\n\nForamsulfuron (Revolver):
\n\n\n\nSulfentrazone (Dismiss):
\n\n\n\nWeed and feed herbicides are pre-emergent and post-emergent products that also contain fertilizer. Several granular herbicides come with fertilizers. Make sure you are getting the weed and feed product that is best for your grass.
\n\n\n\nBut be aware of when it is best to apply the herbicide and when it is best to fertilize your grass. Because the two may not coincide, weed and feed products can be bad for your lawn.
\n\n\n\n\n\n\n\nNo, they do not kill weeds that have already sprouted. Pre-emergent herbicides prevent seeds from germinating.
\n\n\n\n\n\n\n\nIndaziflam provides pre-emergence control for goosegrass. Fenoxaprop is a post-emergence for goosegrass. The name-brand product Dismiss also inhibits the growth of goosegrass.
\n\n\n\n\n\n\n\nProdiamine is a selective pre-emergence herbicide that can be used on most cool and warm-season grass types. Halosulfuron and sulfentrazone are post-emergent chemicals for use on most cool and warm-season grasses.
\n\n\n\n\n\n\n\nThere are some DIY pet-safe weed killers. Some are non-toxic to humans and pets, like a salt solution or boiling water. A mixture of borax and water is considered a less harmful natural weed killer; borax is toxic in its concentrated form.
\n\n\n\n\n\n\n\nThe best way to treat lawn weeds is to prevent them before they occur with appropriate lawn care. This includes treating your lawn for diseases, providing the correct amounts of water and fertilizer at the recommended intervals, and mowing the lawn at advised heights.
\n\n\n\nThe next step is to catch weeds before you see them by treating them with a pre-emergent herbicide. But if you don’t have that kind of foresight and end up with weeds in your lawn, you can use post-emergent herbicides to kill them.
\n\n\n\nFortunately, you can treat weeds yourself using products from your local home improvement store or Amazon. But it can be a lot of work, especially if you end up having to hand-pull a yard full of weeds. If you’d rather leave your lawn care needs to professionals, we can connect you with lawn care pros in your area who can help with weed control and other lawn maintenance, such as mowing and fertilization.
\n\n\n\nMain Image Credit: Mihajlo Maricic / Canva Pro / License
\n","title":"How and When to Apply Post-Emergent Herbicides ","featured_media":{"localFile":{"childImageSharp":{"fluid":{"aspectRatio":1.5,"src":"/static/d36c026e50c74fee1a373f4b7b33f258/1789c/weed-killer-spray.jpg","srcSet":"/static/d36c026e50c74fee1a373f4b7b33f258/107df/weed-killer-spray.jpg 320w,\n/static/d36c026e50c74fee1a373f4b7b33f258/293e9/weed-killer-spray.jpg 500w,\n/static/d36c026e50c74fee1a373f4b7b33f258/f2cbb/weed-killer-spray.jpg 800w,\n/static/d36c026e50c74fee1a373f4b7b33f258/1789c/weed-killer-spray.jpg 960w,\n/static/d36c026e50c74fee1a373f4b7b33f258/c26c2/weed-killer-spray.jpg 1200w","srcWebp":"/static/d36c026e50c74fee1a373f4b7b33f258/1dd6e/weed-killer-spray.webp","srcSetWebp":"/static/d36c026e50c74fee1a373f4b7b33f258/67b76/weed-killer-spray.webp 320w,\n/static/d36c026e50c74fee1a373f4b7b33f258/8df11/weed-killer-spray.webp 500w,\n/static/d36c026e50c74fee1a373f4b7b33f258/98a65/weed-killer-spray.webp 800w,\n/static/d36c026e50c74fee1a373f4b7b33f258/1dd6e/weed-killer-spray.webp 960w,\n/static/d36c026e50c74fee1a373f4b7b33f258/3cc96/weed-killer-spray.webp 1200w","sizes":"(max-width: 960px) 100vw, 960px"}}}},"yoast_meta":{"yoast_wpseo_title":"How and When to Apply Post-Emergent Herbicides | Wikilawn","yoast_wpseo_metadesc":"Read to discover how and when to apply post-emergent herbicides, how they work, and which chemicals kill specific weeds."}}},{"node":{"id":"bd23c7a6-56c1-5baf-b0d7-e3b495e7ae45","slug":"pre-emergent-herbicides","path":"/blog/pre-emergent-herbicides/","status":"publish","template":"","format":"standard","author":{"description":"LaShonda Tucker is a freelance writer, poet, and spoken word artist in Atlanta. She earned her masters from the University of Georgia and enjoys playing her violin.","name":"LaShonda Tucker","id":"f7fdb6d3-a89a-5295-963a-aac47afa7cee","path":"/author/lashonda-tucker/","avatar_urls":{"wordpress_96":"https://secure.gravatar.com/avatar/ce61747b62dbfb82f56a8611f2835988?s=96&d=mm&r=g"}},"categories":[{"id":"c16818a6-3923-5fc7-a49b-191ac48bf4d2","name":"Blog","count":81,"path":"/category/blog/"}],"date":"August 7th, 2023","excerpt":"There’s nothing worse to a lawn fanatic than pouring time and effort into caring for your grass, only to find weeds popping out, ruining your lawn. After the money and effort you’ve put into maintaining your yard, no one would blame you for screaming at the top of your lungs at the sight of lawn […]
\n","content":"\nThere’s nothing worse to a lawn fanatic than pouring time and effort into caring for your grass, only to find weeds popping out, ruining your lawn. After the money and effort you’ve put into maintaining your yard, no one would blame you for screaming at the top of your lungs at the sight of lawn weeds. Don’t worry. We get it, and we got you. This article explains how and when to apply pre-emergent herbicides to prevent weeds from ever sprouting in your lawn again.
\n\n\n\nIn this article:
\n\n\n\nThe timing of pre-emergent herbicide application is everything. Pre-emergents will not help you with pesky dandelions or foxtails that seem to be stalking you if they are already sprouting in your lawn. You must apply pre-emergent herbicides before the times of year when weed seeds begin to germinate.
\n\n\n\n\n\n\n\nSpring pre-emergent herbicide applications prevent summer annual weeds, like goosegrass and crabgrass. Apply when the soil temperature is about 55 degrees or higher for 48 hours or longer.
\n\n\n\nThe month or time of the month you apply weed control will be determined by what part of the country you live in since climates and weather differ according to location. That’s why it’s better to sync your herbicide applications with the soil temperature rather than a specific date. You can find a soil thermometer online or at your local gardening supply store for less than $10.
\n\n\n\n\n\n\n\nApplying pre-emergent herbicide in the early fall prevents winter annual weeds, like common chickweed and annual bluegrass. Apply when the soil temperature falls to around 70 degrees for three days or more.
\n\n\n\n\n\n\n\n![\"A](\"https://wp.wikilawn.com/wp-content/uploads/2023/08/Lawn-Treatment-with-Herbicides.jpg\")
Photo Credit: Bouillante / Canva Pro / License
\n\n\n\n\n\n\n\nUse the product as instructed on the package, including following the proper measurement amounts per area covered. It is also important that you protect yourself from these toxic chemicals.
\n\n\n\nProtective gear to wear when applying herbicides:
\n\n\n\nOnce you’re protected, you can apply pre-emergent herbicides in one of two ways, depending on whether the product you purchased is granular or liquid.
\n\n\n\n\n\n\n\n![\"Professional](\"https://wp.wikilawn.com/wp-content/uploads/2023/08/Professional-Gardener-with-Lawn-and-Garden-Seed-Spreader.jpg\")
Photo Credit: welcomia / Canva Pro / License
\n\n\n\n\n\n\n\nGranules are applied by hand or via a shaker bag or spreader. A spreader is best when covering a large area. A cup can be filled with granules and then shaken out from the cup onto the lawn, but this method can take a while.
\n\n\n\nWater the lawn after spreading granules so the herbicide can penetrate the soil, allowing the active ingredients to attack the weed seeds.
\n\n\n\nTools needed:
\n\n\n\nSteps:
\n\n\n\n![\"A](\"https://wp.wikilawn.com/wp-content/uploads/2023/08/Preparing-Pest-Control-Spraying-Equipment.jpg\")
Photo Credit: welcomia / Canva Pro / License
\n\n\n\n\n\n\n\nLiquid pre-emergents come in ready-to-use or concentrated forms. If the liquid is in concentrated form, it requires mixing with water, and a sprayer is used for application. Ready-to-use pre-emergents don’t need mixing and typically come in a spray bottle or sprayer.
\n\n\n\nTools needed:
\n\n\n\nSteps:
\n\n\n\nIf you’ve been doing your homework and researching weed control solutions, you have come across both pre-emergent and post-emergent herbicides. Pre-emergent herbicides prevent seeds from germinating. They do not kill weed seeds that have already germinated or actively growing weeds.
\n\n\n\nOn the other hand, post-emergent herbicides control weeds that have sprouted and are growing.
\n\n\n\nA few herbicides contain chemicals that perform as both a pre-emergent and post-emergent herbicide. Products with Dithiopyr are examples.
\n\n\n\n\n\n\n\n![\"a](\"https://wp.wikilawn.com/wp-content/uploads/2023/03/Watering-Lawn.jpg\")
Photo Credit: PxHere
\n\n\n\n\n\n\n\nThe active ingredients in pre-emergents are triggered when watered, which allows the chemicals to penetrate the soil. The chemicals form a barricade on the top of the soil which stops seeds from germinating. Depending on the chemicals in the product, they may stop the roots from growing, prevent seed cell division, or inhibit growth enzymes.
\n\n\n\n\n\n\n\nIt’s important to make sure you get the right type of pre-emergent herbicide for your specific weed problem. Otherwise, you might end up hurting your lawn, too, and not just the weeds. The two categories of pre-emergent herbicides are selective and nonselective.
\n\n\n\n\n\n\n\nSelective herbicides control specific weeds without adversely affecting other plants. Most pre-emergent herbicides used for home lawns fall into this category.
\n\n\n\n\n\n\n\nNonselective herbicides kill all plants. Because of this, nonselective herbicides are used to spot-treat specific plants rather than being applied to the whole lawn or garden. Don’t apply nonselective herbicides around the same time you seed new grass, or they will prevent the grass from growing.
\n\n\n\n\n\n\n\nPre-emergents should only be used on turfgrass that has been established for at least one year. Grass can be damaged if pre-emergents are applied too soon after reseeding or overseeding the lawn.
\n\n\n\nSome cool-season grasses that can be injured by pre-emergent applications after the grass has been seeded are tall fescue and ryegrass. Warm-season grasses adversely affected are Bermudagrass and centipedegrass.
\n\n\n\nExamples of grasses that can be damaged by pre-emergent herbicides after sodding or sprigging are the warm-season grasses St. Augustinegrass and Zoysiagrass.
\n\n\n\n\n\n\n\nNot all weed killers kill all weeds. So, knowing the type of weed that is growing is important. Make sure you are identifying the weed correctly. Some weed killers destroy broadleaf weeds like spurge, clover, and ragweed. Others are chemically formulated to control grassy weeds, like foxtail and barnyardgrass.
\n\n\n\nAlso, knowing your grass type is important. As previously explained, certain weed killers are recommended for use on certain types of grass seed, while some come with a warning to never be used on specific grass types.
\n\n\n\nSome products are weed killers and fertilizers in one. But homeowners should only fertilize plants and lawns when they are growing actively. Therefore, using a weed and feed product may not be a good idea. Homeowners should never use a two-in-one herbicide on warm-season turfgrasses like Zoysiagrass and Bermudagrass.
\n\n\n\nHere are some examples of active ingredients in pre-emergent herbicides and what grass types or kinds of plants on which they can be used safely:
\n\n\n\nAtrazine:
\n\n\n\nBenefin:
\n\n\n\nDithiopyr:
\n\n\n\nIndaziflam:
\n\n\n\nProdiamine:
\n\n\n\nWait at least eight to 10 weeks after using weed killers to reseed your lawn, or the seeds can be killed by the weed control chemicals.
\n\n\n\n\n\n\n\nCorn gluten meal can be used on henbit in early spring to inhibit seed germination. If the seeds have already germinated, applying the meal can cause the weed to grow. Apply corn gluten meal when it is going to be dry for at least two days; roots in moist soil can absorb nutrients that activate weed growth. Monthly reapplications may be necessary.
\n\n\n\n\n\n\n\nGrass that is not properly maintained can result in weed growth. Lawns need to be mowed at the correct heights, fertilized regularly, and watered at the proper frequency to grow thick enough to crowd out weeds. Thin or bare turfgrass can promote weed growth.
\n\n\n\nIn gardens, new weed seeds can be introduced by mowers used on grass that had weeds. However, most weeds in gardens are from seeds that developed in previous years in the garden. Weeds can also emerge when plants are spaced too far apart.
\n\n\n\n\n\n\n\nHere are some things you can do to manage weeds:
\n\n\n\nHere are some proactive weed management tips:
\n\n\n\nWhile dinitroanilines control some broadleaf weeds, they do not control perennials, like nutsedges, for example.
\n\n\n\nHerbicides can contain chemicals that both attract and harm pets. Animals can be adversely affected by eating plants treated with herbicides and by inhaling the toxins from treated plants. Some tips to keep pets safe are:
\n\n\n\nBeing one step ahead of weeds is the only way to prevent them. If you know when weed seeds are germinating, you can apply pre-emergent herbicide to keep them from ever sprouting in your lawn. And if you prevent weeds, you’ll never have to pull them.
\n\n\n\nWhen it comes down to it, weed management can be a pain. You have to keep up with a regular schedule, and if you miss just one herbicide application, you could end up with a lawn full of weeds in no time. If you prefer to let someone else manage your lawn care, we can connect you with lawn care professionals in your area who can keep your lawn pristine and weed-free.
\n\n\n\nMain Photo Credit: Henfaes / Canva Pro / License
\n","title":"How and When to Apply Pre-Emergent Herbicides ","featured_media":{"localFile":{"childImageSharp":{"fluid":{"aspectRatio":1.4388489208633093,"src":"/static/a9cff12360d0219e3e098f024fd52344/1789c/Gardener-horticulturalist-spraying-weed-killer-on-lawn-garden-maintenance.jpg","srcSet":"/static/a9cff12360d0219e3e098f024fd52344/107df/Gardener-horticulturalist-spraying-weed-killer-on-lawn-garden-maintenance.jpg 320w,\n/static/a9cff12360d0219e3e098f024fd52344/293e9/Gardener-horticulturalist-spraying-weed-killer-on-lawn-garden-maintenance.jpg 500w,\n/static/a9cff12360d0219e3e098f024fd52344/f2cbb/Gardener-horticulturalist-spraying-weed-killer-on-lawn-garden-maintenance.jpg 800w,\n/static/a9cff12360d0219e3e098f024fd52344/1789c/Gardener-horticulturalist-spraying-weed-killer-on-lawn-garden-maintenance.jpg 960w,\n/static/a9cff12360d0219e3e098f024fd52344/c26c2/Gardener-horticulturalist-spraying-weed-killer-on-lawn-garden-maintenance.jpg 1200w","srcWebp":"/static/a9cff12360d0219e3e098f024fd52344/1dd6e/Gardener-horticulturalist-spraying-weed-killer-on-lawn-garden-maintenance.webp","srcSetWebp":"/static/a9cff12360d0219e3e098f024fd52344/67b76/Gardener-horticulturalist-spraying-weed-killer-on-lawn-garden-maintenance.webp 320w,\n/static/a9cff12360d0219e3e098f024fd52344/8df11/Gardener-horticulturalist-spraying-weed-killer-on-lawn-garden-maintenance.webp 500w,\n/static/a9cff12360d0219e3e098f024fd52344/98a65/Gardener-horticulturalist-spraying-weed-killer-on-lawn-garden-maintenance.webp 800w,\n/static/a9cff12360d0219e3e098f024fd52344/1dd6e/Gardener-horticulturalist-spraying-weed-killer-on-lawn-garden-maintenance.webp 960w,\n/static/a9cff12360d0219e3e098f024fd52344/3cc96/Gardener-horticulturalist-spraying-weed-killer-on-lawn-garden-maintenance.webp 1200w","sizes":"(max-width: 960px) 100vw, 960px"}}}},"yoast_meta":{"yoast_wpseo_title":"How and When to Apply Pre-Emergent Herbicides | Wikilawn","yoast_wpseo_metadesc":"Find out how and when to apply pre-emergent herbicides, including examples of which chemicals prevent which weeds and answers to FAQs."}}},{"node":{"id":"cbcbc672-7fb2-51a1-a118-834cceeaaa1b","slug":"how-to-use-salt-kill-weeds","path":"/blog/how-to-use-salt-kill-weeds/","status":"publish","template":"","format":"standard","author":{"description":"LaShonda Tucker is a freelance writer, poet, and spoken word artist in Atlanta. She earned her masters from the University of Georgia and enjoys playing her violin.","name":"LaShonda Tucker","id":"f7fdb6d3-a89a-5295-963a-aac47afa7cee","path":"/author/lashonda-tucker/","avatar_urls":{"wordpress_96":"https://secure.gravatar.com/avatar/ce61747b62dbfb82f56a8611f2835988?s=96&d=mm&r=g"}},"categories":[{"id":"c16818a6-3923-5fc7-a49b-191ac48bf4d2","name":"Blog","count":81,"path":"/category/blog/"}],"date":"August 7th, 2023","excerpt":"Surely there is another way to kill stubborn weeds than using dangerous chemicals or expensive organic herbicides, right? Right. This article discusses how to use salt to kill weeds. It turns out you can get rid of weeds in a way that does not pose a health risk to you and your loved ones. And […]
\n","content":"\nSurely there is another way to kill stubborn weeds than using dangerous chemicals or expensive organic herbicides, right? Right. This article discusses how to use salt to kill weeds. It turns out you can get rid of weeds in a way that does not pose a health risk to you and your loved ones. And it’s right in your kitchen cabinet!
\n\n\n\nKeep reading to learn how to kill weeds with salt instead of toxic chemicals like Roundup.
\n\n\nWho knew sodium chloride, aka regular ole table salt, could be so useful in the yard? Even if all you have is the salt you use to season your food, you can use it to eliminate weeds.
\n\n\n\nIf you live in a location where it gets icy regularly, you may also keep rock salt, the salt placed on the ground to eat away ice in winter, in the house. It can also be used to kill weeds.
\n\n\n\n\n\n\n\n![\"table](\"https://wp.wikilawn.com/wp-content/uploads/2023/07/table-salt-spilled-out-on-a-table.jpg\")
Photo Credit: Sebalos / Canva Pro / License
\n\n\n\nWhat you need:
\n\n\n\nSolutions more concentrated with salt can disrupt the soil composition and hurt other plants you want to keep. So, a 1-to-2 salt-to-water mixture is best in a flower bed or on your lawn. You can start with a 1:3 salt-to-water ratio and increase the salt content daily until it starts killing the weeds.
\n\n\n\nIn areas where soil health preservation is not important, like cracks in the driveway, a 2:1 or 3:1 salt-to-water ratio can be used to kill the weeds more quickly and with fewer applications.
\n\n\n\nAdd a little white vinegar and liquid dish soap to make the salt solution more effective.
\n\n\n\n\n\n\n\n![\"rock](\"https://wp.wikilawn.com/wp-content/uploads/2023/07/rock-1.jpg\")
Photo Credit: BWFolsom / Canva Pro / License
\n\n\n\nWhat you need:
\n\n\n\nThere are a couple of ways to apply rock salt as a post-emergent weed killer.
\n\n\n\nEasy No-Mix Rock Salt Weed Killer: Sprinkle a little rock salt on the ground at the base of the weed. This is a fast method for controlling weeds sprouting in driveways and walkways and between pavers. The pesky plants will die within about a week and a half. Rock salt will also kill grass and other plants and stop anything from growing where it has been sprinkled, giving it a pre-emergent herbicidal quality. Rain will eventually dissipate the effects.
\n\n\n\nRock Salt Spray Recipe: Add 1 cup of rock salt to 1 gallon of hot water. Mix until the salt is dissolved. Put the combination into a spray bottle. This solution is a good way to kill weeds in grass and flower beds because you can spray it directly on weeds and keep it from coming into contact with the plants you want to keep.
\n\n\n\n\n\n\n\n![\"\"](\"https://wp.wikilawn.com/wp-content/uploads/2023/07/using-spray-to-kill-a-weed-in-mulch-1.jpg\")
Photo Credit: killerb10 / Canva Pro / License
\n\n\n\nOnce you’ve mixed your salt spray, spray it directly onto the weeds you want to kill. Be careful not to get too much salt water on your grass or ornamental plants. After five days, respray the weeds. Wait another five days and reapply. If there is torrential rain, it could dilute the salt, and you may have to reapply it sooner than five days.
\n\n\n\nYou don’t want to saturate your soil with salt water. It can harm the soil and nearby plants. So, after spraying weeds with salt water, thoroughly water the roots of any nearby vegetation to dilute any salt solution that made contact with grass or ornamentals.
\n\n\n\nOverall, a salt spray is best for small-scale weed problems.
\n\n\n\n\n\n\n\nThe type of salt used is important. It must be rock salt or sodium chloride to kill weeds. Table salt that is iodized or non-iodized will work. Avoid using sea salt and magnesium sulfate, which is also known as Epsom salt.
\n\n\n\n\n\n\n\nSalt is so effective at killing weeds that it can kill other plants and disrupt the soil composition so that nothing grows for a few years. As previously stated, this prevention of regrowth gives salt a pre-emergent herbicidal quality.
\n\n\n\nSalt contains acetic acid, which pulls out moisture. The way salt kills weeds is by dehydrating them and disrupting the plant cells’ internal water balance. Weeds absorb this natural weed killer more when water is added to the salt. Salt burns the foliage and prevents the plant from getting sufficient water.
\n\n\n\nWhite vinegar also has acetic acid, so adding a little of it to your salt solution will increase the moisture extraction effects.
\n\n\n\nAdding a little liquid dish soap to your solution can also make the salt more effective because dish soap is a surfactant, meaning it reduces the water’s surface tension, enabling the plant to absorb more of the solution.
\n\n\n\n\n\n\n\n![\"salt](\"https://wp.wikilawn.com/wp-content/uploads/2023/07/salt-being-poured-from-someones-fingers.jpg\")
Photo Credit: taffpix / Canva Pro / License
\n\n\n\nSalt is not toxic like chemical herbicides. However, applying salt as a weed killer does come with advantages and disadvantages. Let’s look at some:
\n\n\n\nPros:
\n\n\n\n✓ Does not cause health risks that herbicidal chemicals containing ingredients like 2,4-D and glyphosate are linked to, such as endocrine disruption and cancer
✓ Cheaper weed killer than commercial herbicides
✓ Children and pets do not have to stay off the grass to avoid toxic exposure
✓ Effectively kills smaller weeds
✓ Can be used near edible plants without exposing them to dangerous chemicals
Cons:
\n\n\n\n✗ Large quantities can change the pH level of the soil and make it sterile
✗ Can kill nearby plants and grass
✗ May not work on salt-tolerant plants
✗ Not as effective on large plants
✗ Should be used for weed killing on a small scale
Salt is not the only homemade weed killer that can effectively replace toxic chemical herbicides.
\n\n\n\nBoiling water has some of the same benefits and disadvantages as a salt solution. Surrounding plants can be damaged if boiling water splashes on them. On the other hand, boiling water will not disturb the chemical composition of the soil and damage it or prevent future growth.
\n\n\n\nVinegar solutions usually include adding salt, but the amount of salt is less. The most effective vinegar mixtures are made with vinegar that is 20% acetic acid, also known as herbicidal vinegar. These weed killers, like salt, can change the soil composition.
\n\n\n\nUltimately, the decision of which homemade weed-killing method to use is up to you. To salt or not to salt? That is the question. All of these non-toxic herbicides are safer for pets and humans than their commercial herbicide counterparts.
\n\n\n\nIt typically takes about 10 days for a salt and water solution to kill existing weeds.
Practicing good lawn care management regularly will help prevent weeds in the first place. It is difficult for unwanted plants to sprout in a well-kept lawn or garden. Here are some tips for preventing weeds in your landscape:
● Use mulch in gardens and on the lawn. Mulch stops weed growth. Apply organic mulch to decrease weed germination. Leaving grass clippings on the lawn after mowing is a natural way to fertilize the grass and suppress weeds. However, leaving clippings when you have lawn weeds will spread the seeds.
● Check for weeds regularly so you can eliminate them when they are young and few.
● Plant grass seed adapted to your area, which will thrive in your climate and more easily outcompete local weeds.
● Mow, water, and fertilize the grass as recommended for your grass type. See recommendations for cool-season grasses and warm-season grasses in our guides.
● Treat the lawn for diseases and insects to keep the grass healthy and weed-resistant.
● Pull up weeds with a tool or by hand and remove the taproot to prevent regrowth.
● Plant ground cover. These ornamentals spread quickly, providing a dense carpet that smothers and suppresses weeds.
Pulling weeds by hand or with a tool is an eco-friendly method that doesn’t affect the soil or other plants. It is easier to manage weeds this way when there are only a few of them and they are young. Wet the soil to remove weeds more easily. Ensure you have removed the entire root system to prevent regrowth.
Having a way to manage weeds that is cheaper and more convenient than commercial herbicides is nice. Having a way to manage weeds that is safer for your family, fur babies, and the environment is priceless. Salt is both!
\n\n\n\n
But if you need a break from DIY landscape maintenance, there is a way you can have your cake and eat it, too. Enjoy a beautiful, thriving yard and some leisure time by connecting with qualified lawn care professionals in your area to do all the work while you chill.
Main Photo Credit: ac_bnphotos / Canva Pro / License
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