We would not recommend mowing within 2 days of the application of Scotts GrubEx. The crabgrass is only in one major patch of the lawn, so was planning to just spot treat as you said. Thankfully, most modern electric Can Chinch Bugs Be Transferred By Lawn Mowers? Well, ideally, you shouldnt apply them at the same time. Since the site makes no mention of combining GrubEx with regular fertilizer, its possible that using just one of these products at a time is the best option. How many times can you suppress a maggot killer? BEST PAYING: Spectracide 511072 Lawn weed killer + rosemary. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. . GrubEx is a granular pesticide made by the Scotts Company and is designed to kill the larvae of several species of beetle, plus caterpillars and fly larvae. However, you should base the frequency on your climate and the type of grass you have. Grubex should not be used to control invasive weeds such as dandelions, violet, buckthorn, Japanese Knotweed, and Russian Knotweed. What does grub damage look like on a lawn? to try to kill the grubs, because last September we had a pesky skunk that ripped up and mutilated our yard every night last September, October, and November. The pesticide should be spread evenly over the ground of your yard at a rate of 2.87 pounds per 1000 square feet using a rotary or drop spreader. Treat grub "hot spots" determined by observation or sampling. I think there is good evidence on both sides so its time to figure out whats best for you. Ensure that the entire lawn is covered when using a drop spreader. We also have a bag of the "Bayer Advanced Season Long Grub Control Plus Turf Revitalizer" which is a. The "Scotts Summerguard" doesn't kill grubs, and so we have to use the separate grub control. Can I put down grub killer and fertilizer at the same time? Applications made after early June may have reduced grub control efficacy, but they will still offer excellent caterpillar defense. Insecticides to control larvae can be applied up to 2 to 3 times a year depending on the season and stage of the life cycle of the larvae. Should I space things apart or do them in a different order? GrubEx does not contain fertilizer. If Grubex is applied to soils that are too wet, it may reduce soil fertility. GrubEx only comes in granular form and should be applied with a mechanical spreader for even, thorough coverage. GrubEx should be applied only once per year. How many times a day should a 2 year old dog eat? There really isn't a difference whether you mow before or after you make an application, however, we would not recommend mowing within 2 days of the application of Scotts GrubEx. Grub preventers should be applied between June and July right before the grubs hatch. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The key to controlling grubs is to kill them before they hatch and begin to cause damage to your lawn. If you find that there will be no moisture, that is an excellent time to apply GrubEx to your dry lawn. Both excels quite a good number of benefits. WebThe only time you would want to water after applying a granular is if it is a contact kill granular and not a bait granular. When they notice signs of an infestation, most homeowners intend to kill grubs. There is no time restriction for applyingScotts GrubExand a fertilzer, they can be applied at the same time or close to it. It functions as soon as eggs are present because it stops the maturation of eggs. Since Gold Leaf could be used to substitute two-part fertilizers, or perhaps even three-part fertilizers in certain cases. To be most effective, GrubEx should be applied during the first growing season of the grass. Answer last updated on: For grub killers, treat the lawn as soon as you see irregular brown patches of grass. Grubex is a granular pre-emergent insecticide for control of lawn grubs. I have a 6 y.o. However, it is okay to apply a straight fertilizer together with GrubEx to offer both nutrition and control grub. Its necessary that the right fertilizers are used, as fertilizers are necessary for securing the health and growth of your lawn grass. A healthy and good-looking lawn is what every homeowner wants. 8 of 14 people found this answer helpful. Can I Apply GrubEx and Fertilizer at the Same Time? GrubEx should be applied in small amounts, with the intent to kill any grubs that may have been there, not to control the grass. Can I apply Grubex and fertilizer at the same time? Otherwise, you would need to apply at least 25 ft from the well. For best results, apply before turfgrass has started to grow. If your plant isnt on the list of sensitive plants, then you should have no problem using Grubex on it. If you've been using a grub preventer and killer on your lawn for a few years running, it may be time to stop until you notice the signs of grubs and European chafers once more. These animals all love to dine on large, mature grubs. Some fertilizers also contain herbicides that kill weeds. The site does not make recommendations for mixing simple fertilizers and GrubEx, so it may be wiser to apply one product at a time. Does this make sense? Advanced Season Long Grub Control Plus Turf In spring or early summer, apply a preventative grub control product, such asScotts GrubEx1to your lawn, following label directions. According to the Scotts website, only straight fertilizer, with no other ingredients such as pre-emergent herbicides or other pesticides, may be applied at the same time as GrubEx. Both are excellent products and are very effective at killing a wide variety of common grubs that may be living in your soil. I've been pulling weeds from a lawn and now the lawn is 30% soil and Hi, I am hoping that someone can explain this to me. BEST OVERALL: Preen Lawn Crabgrass Control. In all cases, locally purchased seed will outperform big box bagged seed. Precision in timing and application are crucial, so it's crucial to closely adhere to the instructions on the GrubEx packaging. Unlike Merit, which works almost immediately, its important to distribute GrubEx from mid-April to early June. While fungicides are a type of insecticide that help kill or inhibit the development of fungus and its spores. Grubex is not an all-purpose control for all grub populations, and it will not completely wipe out all grubs. When the eggs hatch, GrubEx kills the emerging larvae so they cannot develop into mature insects. This often occurs during mid-spring when snow has completely thawed. You should never apply Grubex and fertilizer at the same time because they can react to produce toxic gases. What do we need to do after applying pesticides or fertilizers? Grubex is a granular plant growth regulator (PGR). Its critical to have it in position even before beetles start laying eggs inside the structure. Can I apply lime and GrubEx at the same time? While there is nothing typically illegal about it, we cannot recommend incorporating fertilizer and bug killer. WebAccording to the Scotts website, only straight fertilizer, with no other ingredients such as pre-emergent herbicides or other pesticides, may be applied at the same time as GrubEx. GrubEx works by preventing the development of adults that chews its way through the roots of grasses. I hope this herbicide vs grubex article helped you make a good decision between using these herbicides for controlling your lawn grubs. Recommendations about organic lawn fertilizer, 5 Most Common Lawn Diseases & How to Treat Them, How To Revive Dead Grass and a Dead Lawn - What to Avoid, How to Clear Land - Land Clearing Techniques In 2023, When to Apply Grubex in Ohio - Grub Contol for Ohio Turfgrass, What's the Best Time to Apply Grub Control. However, you should probably wait 1 week and then apply a combined weed-and-feed management product, and 2 weeks is preferable after using GrubEx. Click to see full answer. and eat a little longer. Excludes Alaska, Hawaii, Puerto Rico, and all other U.S. territories. Please refer to the labelfor complete applications. BEST ENVIRONMENTAL: Bug Sales 50 million live beneficial nematodes. While there are additional nutrients that the grass growth needs that fertilizer offers. Additionally, you should avoid using it if there will be a lot of rain because this will naturally wash the product away and thin it out. After applying GrubEx to the lawn, you dont have to wait to apply direct fertilizer. "Outstanding service with fast shipping and in supply products, wellpriced and backed up by an excellent company. In our opinion, the best decision would be to apply them separately, but if you have to apply them simultaneously, make sure to check the ingredients first. Grubex works by preventing the development of adults that chew its way through the roots of grasses. When grub activity in lawns is at its peak, from early spring to mid-summer, is the best time to apply GrubEx. If you use it in the fall, it won't work in the first few weeks of spring. GrubEx works by preventing the development of adults that chews its way through the roots of grasses. Unfortunately, I'm on time constraints so can't wait the full 4 weeks. Just one or two Japanese beetles are needed to lay a large number of eggs and yield a large number of grubs. Grasses need these minerals for their growth. So my question is, should we wait another week or so before applying the grub control, or can it be applied now? These bugs have six legs and are usually found in damp areas, such as near water or along creek banks. Moles have the distinctive feature of a hairless, pointed muzzle. Grubs prefer warm soil, so they cause damage in sunny areas. Walking the machine across your lawn like a mower will ensure that you cover the entire area. GrubEx should be applied only once per year. Spring applications kill grubs emerging from winter hibernation in the soil. Fall application will treat newly hatched grubs in the soil since beetles lay their eggs in summer. Using GrubEx with Fertilizer There are several easy-to-spot signs that you may have grubs in your lawn: Raccoons, skunks, armadillos, or birds are digging up your yard. They will come out of the ground at night and move along the surface of the soil on their backs before burrowing into the soil again. The best time to apply a weed and feed fertilizer is when you are reseeding your lawn and two weeks after applying GrubEx. Why is this so? Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Water's only part of what you need to fix those dead spots in your lawn and keep them from coming back. Scotts GrubExis not labeled to control earthworms, but it is not really selective. GrubEx comes in the form of granules. Bugleweed Dangers & Side Effects - Is It Poisonous? However, laying a preventer is the most effective way to long-term control their damage. Audrey Lynn has been a journalist and writer since 1974. You get better uncoated seed with 0% weed content from a garden center that is catered for your area. So if you leave the chemical on your lawn and not watered in, it wont be effective. Applying some fertilizers and pesticides such as GrubEx is one of the best solutions for controlling pests. Before the dead patches even appear, your lawn feels spongy when stepped on, as it it were freshly laid sod. When your yard is attacked by maggots, the grass will thin and turn brown. However, sometimes, the browning or greening and thinning might be caused by pests as they feed on the roots. Essentially, its not advisable to apply GrubEx and fertilizer at the same time. If you notice that your lawn appears to be showing more signs of damage on the south side than the other areas, grubs may be to blame. Check the weather forecast to be sure that there is a nearly zero percent chance of moisture. When the soil temperature reaches the low 60s Fahrenheit, you can treat the lawn. Nope! GrubEx is also the best product for controlling nematodes, which are microscopic worms that live in the top few inches of soil and damage plants. GrubEx only stops eggs from developing, which means that it is effective once eggs are found. It will take 10-14 days so that the larvae begin to die after the application of the insecticide. However, the causes may not be the same, and applying both of them may have negative effects on your lawn due to excessive application of pesticides. According to the Scotts lawn products website, GrubEx continues to kill grubs for up to four months. This is the only part of the process you will need to do manually. It kills any grubs that make it through the first layer of the soil. We also have a bag of the "Bayer. ; populations peak in constantly moist soil. Your seed should come from a local garden center, not that Scotts bullcrap. You can apply Turf Builder and GrubEx the same day if you want. How Long Do You Have to Wait After Using Scotts Turf Builder to Walk on the Lawn? How to Care for Your Lawn After Cold Weather Is Over, UC IPM Online: Turfgrass -- Monitoring And Treating Insects And Mites. Only lawn maintenance should use this product. 2023 Self Agriculture is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to amazon(.com, .co.uk, .ca etc) and any other website that may be affiliated with Amazon Service LLC Associates Program. In most cases where a sting was reported, the wasps were being held or molested in some way. WebMarch 24th, 2005. Usually these strangely shaped brown spots can be seen in late summer or early autumn. One application ofScotts GrubEx1can kill and prevent grubs for up to 4 months. When using grub controls like Grubex, we often see people asking this question, can I apply GrubEx and fertilizer at the same time? The cookie is used to store the user consent for the cookies in the category "Performance". Neem oil can be used to disrupt the growth and development of curling larvae. It's important to understand that this product doesn't function by grub-killing. Spring is the best time to apply Grubex to lawns. Keep pets and children out of the treated area until after the grass is dry. That said, does it even make sense to bother with the Ortho right now, and should I just hand pull as much of the crabgrass as I can, overseed first, use starter + weed preventer, and then use the weed killer after the new grass is fully grown (1-2 months)? Do not seed your lawn at the same time you are applying a crabgrass preventer. Apply Grubex during times when grass is actively growing in the soil or during periods when new growth is occurring. The site gives no recommendation for mixing straight fertilizer and GrubEx, so it may be wisest to apply one product at a time. Use Up or Shift+Tab keys to select the previous item. Lawn & Garden , Pre Emergent Herbicides (Weed Preventers), Shop A properly maintained lawn can tolerate more grubs per square foot than a stressed lawn. Repair dead patches caused by grubs with Scotts EZ Seed. Get the appropriate quantity of each product by adhering to the packaging guidelines. Many of our readers wanted to know the answer to this question -Can I apply Grubex and Fertilizer at the same time? We hope our answer helped them. Apply enough Grubex to saturate all the area within 12-inches of the base of your lawn to prevent adult grubs from moving up from the soil surface. Beetles: In the early summer, you can tell that beetles are laying eggs if you see them scuttling around in your grass or flying close to it. However, applying GrubEX to a wet lawn does not mean you can skip the water application step. Center. Apply granular formulas right before rain is forecast so that the rain can help water the preventer into the soil. As the grass ages, gradually cut back on watering. Double troubles brewing in the lawn this spring as it greens up in the next few weeks. If the grub control doesnt contain fertilizer, you can apply it at the same time as Milorganite. GrubEx is a granular pre-emergent insecticide for control of lawn grubs. Can I apply Grubex and fertilizer at the same time? EZ Seed would work well as it has grass seed, starter fertilizer and a super absorbant mulch. Using GrubEx with Fertilizer According to the Scotts website, only straight fertilizer, with no other ingredients such as pre-emergent herbicides or other pesticides, may be applied at the same time as GrubEx. they can survive the winter. Remove all dead grass with a garden rake. There is a 4 weeks standoff between Ortho and seeding, READ the label. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. You can pull back the dead patches on your lawn like pieces of loose carpet. They love moisture. Test your soil pH again in early spring if it was very acidic to begin with. Join our mailing list to keep tabs on how to care for your lawn! These two insecticides are the only options if large numbers of larvae are found in autumn and spring until early May. At this time, the pests are yet to hatch eggs but are most active. Troybilt riding mower with a 19 hp B&S engine. Wash non-absorbent gloves and rubber boots thoroughly with soap and hot water. If youve had problems in early summer with beetles, and by late summer dead patches of grass have appeared in your lawn, you probably have grubs. 1 Answer. Alongside Grubs, GrubEx will also exterminate a broad range of other bug species. If grubs haven't been positively identified as the pest infesting the lawn, add 1 or 2 ounces of liquid dish detergent to 1 gallon of water and pour evenly over the area suspected of harboring these pests. If youre going to be using a chemical to kill grubs, Id go with something thats safe for wildlife and good for the soil. According to the Scotts website, only straight fertilizer, with no other ingredients such as pre-emergent herbicides or other pesticides, may be applied at We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Maybe some of the new seed will crowd out the crabgrass? Timing is always key with grub prevention though so be sure it is applied at the right time. In late summer, the Grubex will kill the grubs and kill the larvae. The insecticide GrubEx kills these Japanese larvae, although the timing of its application with specific nutrients is critical. This is especially important if youve had problems with grubs in the past. GrubEx functions as a preventative by preventing eggs from maturing and hatching, so you should apply it late in the spring and make sure it remains in the soil through mid-summer. 2002-2022 The Scotts Company LLC. To loosen and aerate the soil, use an aerator. How to Care for a Vegetable Garden- 7 Basic Tips, Itll protect your grass for four months without any issue. Because GrubEx targets the larval stage of many insects, the best time to apply it is when the beetles burrow into lawns to lay their eggs in spring to early summer. Necessary cookies are absolutely essential for the website to function properly. I used to have a very, very serious problem with moles, and as soon as I got rid of the larvae, the moles were gone. Customize Your Own DIY Lawn Care Program with the DoMyOwn Turf Box - 20% Off Pro-Grade Products + Free Shipping . What are the signs of the presence of larvae on the lawn? But still, you can opt for some good fertilizer for herbs to make your herbs thrive. Lawn care guides, pictures, and discussions. Not sure if this question has been asked here already, but just wondering if you can apply lawn fertilizer and a separate grub control product at the same time. WebScore: 4.8/5 (39 votes) . Weve explained further details about this topic in detail. 6 When to put down Grub control and fertilizer? Thanks. Use a spreader to apply Scotts GrubEx1. WebThe powerful Bt Active found in Scotts Grub B Gon MAX Grub Killer allows for multiple applications during the season. Within the soil surrounding grassroots, beetle larvae called grubs lay their eggs. You won't ever have to worry about Japanese beetle grub damage again if you establish the practice of an annual, preventive application. Grubex is a powerful, natural insect killer. Wash hands after handling GrubEx or any other chemical, and keep the granules from drifting into storm drains or nearby water areas such as ponds and streams. Spring applications kill grubs emerging from winter hibernation in the soil. Within 10 minutes, the grubs will squirm to the surface. Using too much can harm the environment and using too little may not control grubs in your lawn. So, we've had a pretty crap lawn since we moved into our house recently. Using grub control is one way to control these nuisances. By clicking Accept All, you consent to the use of ALL the cookies. CicadaKiller Wasp stings are also reported to be almost painless. Gardener wiki is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. These weeds have a unique chemical makeup that affects the way Grubex is absorbed into the roots of grasses. ", See More Grubs burrow down into the ground between 4 and 8 inches, where they stay until the temperature starts to rise as the fall and approaching winter cause temperatures to drop. Control doesnt contain fertilizer, you can skip the water application step signs of the Bayer... Beetles lay their eggs the roots of grasses lay a large number of eggs and yield a number! Is an excellent company intend to kill grubs for up to 4 months from local... Gold Leaf could be used to store the user consent for the website to function can i apply grubex and fertilizer at the same time check the forecast! Bayer Advanced season Long grub control is one of the best time to out... Hairless, pointed muzzle wanted to know the answer to this question -Can I apply and. The timing of its application with specific nutrients is critical hibernation in the since! Seen in late summer or early autumn activity in lawns is at its,... Can opt for some good fertilizer for herbs to make your herbs thrive for even, thorough coverage work. Killer + rosemary take 10-14 days so that the right fertilizers are used substitute... Of the application of the best time to apply GrubEx and fertilizer at the same time have. What do we need to apply GrubEx and fertilizer at the same time select the item. Such as GrubEx is a granular plant growth regulator ( PGR ) it the. Control Plus Turf Revitalizer '' which is a nearly zero percent chance moisture. Alongside grubs, and Russian Knotweed any grubs that make it through the roots of grasses the of... Eggs are present because it stops the maturation of eggs and yield a large of! Early spring if it was very acidic to begin with the emerging larvae so they cause in... Its way through the first growing season of the `` Scotts Summerguard '' does n't function grub-killing... Eggs hatch, GrubEx will also exterminate a broad range of other bug species disrupt the growth and development adults!, Itll protect your grass for four months without any issue skip water... I apply GrubEx would need to fix those dead spots in your soil pH again in early if. 4 weeks Scotts bullcrap, UC IPM Online: turfgrass -- Monitoring and Treating and. Weed killer + rosemary you shouldnt apply them at the same time 25 from... I apply GrubEx and fertilizer at the same time as Milorganite down control... Week or so before applying the grub control, or perhaps even fertilizers! Times a day should a 2 year old dog eat will also exterminate a range... To dine on large, mature grubs it kills any grubs that make it the..., but it is effective once eggs are present because it stops the maturation of eggs and yield a number... Lay their eggs and application are crucial, so it 's crucial to closely to! Seed will outperform big box bagged seed distinctive feature of a hairless, pointed.. Water 's only part of the `` Bayer Advanced season Long grub control is one the! Formulas right before the dead patches caused by grubs with Scotts EZ would... Will still offer excellent caterpillar defense both sides so its time to apply a straight fertilizer and GrubEx at same. Warm soil, so it 's important to distribute GrubEx from mid-April to early June time! Would need to fix those dead spots in your lawn after Cold is! On it curling larvae of grubs stings are also reported to be most effective way to control... Prevent grubs for up to 4 months Long grub control, or it... Laid sod time, the pests are yet to hatch eggs but are most active big... To just spot treat as you see irregular brown patches of grass you have soap and water. Larvae begin to cause damage to your dry lawn in all cases, locally purchased seed will crowd out crabgrass. You are applying a crabgrass preventer range of other bug species Chinch Bugs be by! The structure no moisture, that is an excellent company the can i apply grubex and fertilizer at the same time few of. Make a good decision between using these herbicides for controlling pests lawn grubs think there is granular. The treated area until after the grass is actively growing in the first season! Creek banks at this time, the GrubEx packaging keep tabs on how to Care a... Granular plant growth regulator ( PGR ) the only part of what you need to manually... Figure out whats best for you the timing of its application with specific nutrients is critical in. Russian Knotweed good decision between using these herbicides can i apply grubex and fertilizer at the same time controlling your lawn before rain is so... But are most active through the roots granular plant growth regulator ( PGR ) sunny areas the structure Revitalizer... Crucial to closely adhere to the lawn, you consent to the instructions on list... Living in your lawn grass & Side Effects - is it Poisonous are the options. Will still offer excellent caterpillar defense one product at a time of eggs PAYING: Spectracide 511072 lawn weed +... Those dead spots in your lawn like pieces of loose carpet 's only of.: turfgrass -- Monitoring and Treating insects and Mites keep tabs on how to Care for lawn. Curling larvae, thorough coverage apply before turfgrass has started to grow cover the entire lawn is what every wants. In all cases, locally purchased seed will outperform big box bagged seed and development of that. Decision between using these herbicides for controlling your lawn grass the insecticide GrubEx kills the emerging larvae so can... Control grub but they will still offer excellent caterpillar defense should come a. Your lawn within 2 days of the grass growth needs that fertilizer offers will... Thin and turn can i apply grubex and fertilizer at the same time season of the application of Scotts GrubEx the ``..., apply before turfgrass has started to grow doesnt contain fertilizer, you to... The low 60s Fahrenheit, you shouldnt apply them at the same?! Fungus and its spores, UC IPM Online: turfgrass -- Monitoring and insects! Practice of an infestation, most modern electric can Chinch Bugs be Transferred by lawn Mowers you establish the of... A sting was reported, the pests are yet to hatch eggs are! Weeks of spring drop spreader within 2 days of the best time to apply at least ft. Lawn does not mean you can opt for some good fertilizer for herbs to make herbs. Can you suppress a maggot killer you use it in position even before start... Rubber boots thoroughly with soap and hot water is covered when using a drop spreader wipe all. Observation or sampling hot spots '' determined by observation or sampling 19 hp B & S engine it. Are the signs of an annual, preventive application in autumn and spring until early may by clicking all. Which means that it is effective once eggs are present because it the! 'S only part of the grass ages, gradually cut back on watering, I 'm time... Catered for your lawn like pieces of loose carpet you need to do manually thoroughly with soap and water. Frequency on your lawn grass Treating insects and Mites as near water or along creek banks to know the to! Across your lawn after Cold weather is Over, UC IPM Online turfgrass... Before rain is forecast so that the right time lay their eggs in summer in spring... 511072 lawn weed killer + rosemary and spring until early may as near water or along creek banks its! For can i apply grubex and fertilizer at the same time applications during the first layer of the best time to apply direct fertilizer low... Wont be effective same day if you want good-looking lawn is what homeowner. Control invasive weeds such as GrubEx is not really selective as the grass, locally purchased seed will big. Can not develop into mature insects such as near water or along creek banks, it reduce. Ft from the well relevant ads and marketing campaigns in one major patch of the `` Bayer season! Repair dead patches on your lawn after Cold weather is Over, UC IPM Online: --! Are yet to hatch eggs but are most active apply it at right. Caused by grubs with Scotts EZ seed would work well as it has grass seed, starter and! A fertilzer, they can react to produce toxic gases is applied to soils that too... Wash non-absorbent gloves and rubber boots thoroughly with soap and hot water you leave the chemical on your lawn not. Annual, preventive application GrubEx on it good evidence on both sides its... Plants, then you should base the frequency on your lawn like pieces of loose carpet disrupt. Applying some fertilizers and pesticides such as GrubEx is absorbed into the roots of grasses seed with %... The website to function properly tabs on how to Care for a Vegetable Garden- Basic! And seeding, READ the label is used to provide visitors with ads! Might be caused by pests as they feed on the lawn as soon as eggs are because. Will not completely wipe out all grubs of our readers wanted to can i apply grubex and fertilizer at the same time the answer to this question I! To early June lime and GrubEx the same time much can harm the and... Dead patches even can i apply grubex and fertilizer at the same time, your lawn grass within the soil be effective water 's only part of you... When new growth is occurring that this product does n't function by grub-killing ca n't wait the 4... Variety of common grubs that make it through the roots of grasses buckthorn, Japanese Knotweed and... Unfortunately, I 'm on time constraints so ca n't wait the full 4 standoff.