If you believe your control could be reduced either because the granules were not watered in after application or because they were applied to lawn areas with super saturated soils (where you may have had standing water) and you have had big grub problems in the past another treatment could provide some peace of mind. If you see spring grubs you may need to use a 24 hour grab control. But, it is only effective if proper application measures are followed. So I applied GrubEx last week and watered kit down real good. In spring mature grubs are difficult to kill even with the 24 hour product primarily because they are not actively feeding as they shift into the pupae stage prior to emerging from the soil as a beetle. I suggest you feed your lawn 4 times a year: early April, late May, early September, and mid October. White grubs are a common turf and lawn pest, and beneficial nematodes can be a very effective (and safe!) You mentioned if May was in the review mirror, apply Grubex by late summer. Can I apply grub ex and summer guard at the same time? I live in Southwestern PA. Do not have obvious grub or mole problem. Or should I use the dry from the bag with the spreader ? This will happen later as you see beetles attracted to your porch light at night or feeding on your roses and other plants. One application of Scotts® GrubEx® 1 can kill and prevent grubs for up to 4 months. Hi Phyllis DJ. The process would start in mid summer with Roundup over the entire lawn. Hi Adam F Hi Chad Kelahan You can still do something about it. Hi! This is the season when the eggs have already hatched and are on its way for maturity. What is Grubex? Do I apply the GrubEx now or wait until May? The granular Turf Builder Weed & Feed gives you about 4 times as much nutrients providing a feeding that lasts longer than the hose version. Hi Renee Certainly, there are visible signs that will tell you your lawn might be damaged or affected. Hi Pat Rouse Hi Jennifer Williams Having a hard time determining the difference between Scotts GrubEx and Scotts Summerguard. Less sun than that and the grass will always be thin no matter what you plant. – There is no feeding in GrubEX. Depending on which grub control you choose, applications should generally be made between late April and early August. Turf Builder Grass Seed Full Sun Blend or Heat tolerant Blue Blend would be good choices for you. Thank you! Hi Jeff I have an ant problem and bought triazicide insect killer for lawns. You may check these spots for damages. We do not sell a product that provides the kind of 24 hour grub kill that you are looking for this time of year. Rain in two days is almost as good if it actually happens. Excellent site you have here. As I write this, we are approaching October 2013. Its so informative for new homeowners like myself! Proper timing and precise application are the key factors you need to take seriously. A 10,000 sq.ft. You can seed now. During the same application?? Hi Nancy Please understand that GrubEx you apply now is to kill the next generation of grubs that will show up in summer, not any grubs you may be seeing in your soil now. You should treat your lawn before the larvae hatch. Grubs, Ants, Clover, Moss, Various weeds that I don’t know what they are. If they found a high concentration of grubs now, you should have them treat with the material that provides 24 hour grub control. Look for a product with a claim of 24 – hour grub control. Thank you, should I also wait a week between grubex and bug be gone? You should get good grub prevention as long as your application got a good watering or received a good rainfall within a day or so after spreading. Can I put grub ex & crab grass killer down at same time? If you are only seeing a few grubs in your perennial beds, I would not be too concerned. As what the Scotts Company recommends, every 1,000 square of the lawn should be applied with 2.87 pounds of Grubex. I missed the May Grubex. bag covered the area. Hi Jim Hi Ebony Usually mid- June to Early July. Apply anytime in May/June, the sooner the better. The lawn can’t be mowed for another 2 weeks. The goal is to get the population down to the level that no turf damage is noticed. Hi Joetoronto Hi Jodi The numbers on a lawn food bag are %’s so you need to multiply the % by the bag weight to find the total amount of nutrients. It is late November, we have had snow already, but we’re having some 40+ degree days. If you are in an area where grubs are a problem definitely put down GrubEX this month. Hi Donna Mcmann Maybe May is good where you live… how about those of us that still have some snow in May? If this is not possible, you can spread these two particular products the same day since they both require watering afterward and they are compatible. Hi Deborah Clark I got a bad case of moles last year. (Make sure you are using regular Roundup and not one with Extended Control.) A couple of things to help you with Japanese Beetles: If you locate one of those hanging traps in your garden you will attract more Japanese Beetles to your area than you will trap. will the grub ex after it has been applied, water & dried, hurt my dog? Since a 5,000 sq ft. bag of GreenMAX weights 16.9 lbs, it puts down more nutrients per sq. Late May will be good timing for GrubEX based on when you seeded. Killing these grubs is no joke. These are some of the adults that lay eggs in your lawn during mid summer that will become grubs. Hi David Hi Ann GreenMAX lawn food has a bit more Nitrogen and Iron than in regular Turf Builder. Our temperature has been in the upper 90°F to 105°F for several weeks already with several more weeks ahead. New at lawn care. Thx. Also, any other info about the condition it is in right now. Hi Anthony The 24 hour grub killers do not provide season-long protection for future grubs like GrubEX does. Hi Heather Do they do different things? It should take care of ants however. Hence, the best time to apply Grubex is between spring and early summer. This is the best choice however next year’s treatment will be for next year’s generation of grubs that will show up in late summer/fall. Hi MiceBots Have not treated lawn for 3 years with Grubex. Other crabgrass preventers are not compatible with grass seed. Put down a Starter Lawn Food when you seed. Grubs are only 18% of moles diet. Hi Adam F Be sure to put down Starter Lawn Food when you plant your grass seed. Check with your local Garden Center for a product that will provide 24 hour grub control. Moles like to feed on grubs and earthworms. ft. bag using that same setting. In spring or early summer, apply a preventative grub control product, such as Scotts® GrubEx® 1 to your lawn, following label directions. When? GrubEx kills grubs as they hatch and begin to feed. They are doing some feeding on your grass roots now, however they will soon shift to the pupae stage (kind of like a cocoon) to begin the process to become beetles. You can also spot spray any weeds with Ortho Weed B Gon. Here is a link to a website that talks about everything moles including trapping: http://www.themoleman.com, I just discovered I have grubs…it’s October and a section of my lawn has been invaded by critters ( skunks?) I believe Dave was the last person asking me a question on this post.). If you feel you need to get the more immediate type control without the residual, look for a “24 hour” product at your local garden center. Many of the folks who depend on GrubEX to protect their lawn have had grub damage in the past so that is why they use it. However if there is not much grass there you might be better off just mowing this summer and then doing a total kill renovation this fall. The beetles you are seeing are likely not feeding on your grass roots as they are waiting for warm weather to emerge from the soil. As you say earthworms help to aerate soil. If you anticipate grub problems, the key is to get your GrubEx down before the eggs are laid. In any event, if your lawn is one of the cool-season grasses (Ky Bluegrass, Ryegrass and/or Fescue) you are approaching the time of year to feed 2 or 3 times to maximize root growth. I think your Liriope problem is Crown Rot, caused by Phytophthora palmivora. Would there be any benefits to apply Grubex in Oct or should I just wait and do in May? Check with your local garden center or home center for a recommendation of a product that will provide 24 hour grub control. 2) About 6 weeks after your first feeding, follow up with a feeding of Turf Builder OR GreenMAX Lawn Food. Grubs eat grass roots resulting in brown, dead lawn patches in fall and early spring. Kill the live grubs now? However, if you want a pest control that specifies on killing grubs, Grubex is one of the best options you should consider. One application kills and prevents grubs for up to four months. I didn’t apply GrubEx last year and this year an area of grass is so damaged that I want to tear out any remaining grass and lay down a better base of topsoil and new sod, should I apply another round of GrubEx to this area before the sod goes down? Since I am not familiar with triazide (it is not a Scotts or Ortho product), I checked it out and learned it does not take care of grubs. I got some germination, but not a lot (don’t think I watered enough and it did not rain for 2-3 weeks). Some parts of your lawn might have holes or spots that have been dug up. I put down grub x every year in may. When you rototill your garden area you will likely reduce their population. Apply a product such as Imidacloprid while the beetles are flying, or shortly thereafter. The key is that your grass plants capture the ingredient in the root zone to protect the plants from grub damage. I applied grubex last June after my neighbor informed me that I had grubs(I’m a new homeowner), not sure if it did any good by then. I also apply weed and feed at the same time. Does that mean my application last year didnt work? I planted seeds in late April and put down Scotts starter food with weed control. Moreover, grubs do not ingest any pesticide if you apply it too early in the spring or too late in the fall. This kind of blend is helpful on a sloped area where fast germination of the annual ryegrass helps to hold the soil in place. If you have a few spots to seed, Scotts EZ Seed works well, just be sure to not spread the Weed & Feed in those areas. GrubEx will take care of grubs (one of the primary things moles eat). Can I put down grubb x and then spray Scott’s weed and feed? Typically you want to space Scotts Lawn Food applications about 6 to 8 weeks apart to take full advantage of the timed-release of nutrients. Once applied, it prevents the eggs to mature thus prevent further damages on your lawn. I wait a week between applications. However, it is more effective to use fertilizer when you are reseeding your lawn. That is why you cannot just apply it on your lawn whenever you want to. How many times a year do you use Grubex? If you can control the early scouts that show up, you will greatly minimize the big infestation that show up weeks later. I dropped Grub-X in June and now notice brown patches which appear to be grubs. Hi David If you need to water because your rain gauge is not getting an inch of water a week from rainfall, it is better to water a half inch twice a week rather than a little bit each day. If your grass still has some roots attached to the soil, I would be careful not to rake too hard since your grass may root down into the soil again if it is still alive (like new sod). Let us know and we’ll do our best to help you! Hi MiceBots GrubEx is a material that tries to target the larval phase of various insects. GrubEX will not keep new grass seed from germinating. Can I give it another application now? With healthy roots, your lawn can tolerate a small population of leatherjackets. This may seem normal as it could really happen during the hot season of the year. To apply the pesticide, you want to time it in such a way that the grubs are still small and just hatched. Apply during spring or early summer to kill grubs as they develop. in size and curled up dormant. Change ), Click here to get more info on Scotts GrubEx, https://tipsfromashton.wordpress.com/2012/08/01/how-to-kill-your-bad-lawn-and-start-over/, http://www.walterreeves.com/gardening-q-and-a/vole-damage-to-plants/, http://www.dupont.com.au/content/dam/dupont/tools-tactics/crop/Australia-label-SDS-finder/documents/Coragen%20Label.pdf, https://tipsfromashton.wordpress.com/2017/06/06/time-for-japanese-beetles/, https://tipsfromashton.wordpress.com/2018/06/07/japanese-beetles-grubs-and-moles/, https://www.tomcatbrand.com/en-us/products/moles/mole-baits, https://www.tomcatbrand.com/en-us/products/moles/mole-repellents, Crabgrass Question: “Are We There Yet?”. You may be able to improve your existing grass if there is at least 60 to 70% coverage now by feeding. Is it safe to eat tart cherries from a cherry tree that had Grubex applied on the lawn around it? It's nothing time and a little lawn fertilizer won't heal! Since you know your lawn size, sounds like you put down a half rate. If you get moles, you can trap them, bait them or repel them. If my yard is a “hybrid” of different grasses, one of the primary is Bermuda, is there a recommended method to getting it all to “Tall Fescue?”. When should I put the grub ex down. Hence, the best time to apply Grubex is between spring and early summer. Thanks. I am a new homeowner in Michigan with grubs. $60 a application, so I was thinking of doing it myself. Will my GrubEx application kill the eggs they lay or did I apply GrubEx too early? Hi Jermika GrubEx will not keep grass seed from growing. What do I do next year (assuming it will take a couple/three years to get rid of weeds and a good root system of Blue (living with the Bermuda). I just found this Blog, and I love it. You should do this ASAP so you prevent as much of the crabgrass as you can. I see, what about my house in Niagra Falls, NY? I have applied Grubex on April and should i go for a second application of the same in fall. Over time you will increase your fescue content, especially with a heavy fall feeding schedule. If you miss the window, it is still beneficial to get it down in July or early August. Apply your GrubEx in May. The Grub Control Must Be Watered in Immediately. I was told by a landscaper that I need several treatments before I seed. Apply ASAP to maximize prevention of grub problems in late summer/fall. However, I just noticed a good amount of a wheat like weed (annual bluegrass, Poa annua?). How do i repair the damage that grubs and moles have created in my lawn? The best timing is to apply sometime between May and early August prior to eggs being laid. You may also apply it again afterwards. No need to wait for a mowing. ​Maintaining your lawn may not seem difficult, but when the grubs attack, it might cause a massive damage on your lawn. Part are worms, that you can’t eliminate what do you do now? that can thin your lawn in summer. The best time to apply GrubEx is late spring to early summer. You have watered enough. Grubex should be applied during the time when you notice beetles on your lawn, as this is the time when they start to lay their eggs. If you have observed some of these signs on your turf, you should not disregard these thus start planning about the treatment. Also i would i like to know if it is ok to mow the lawn the next day after applying the grubex. Hi Terrell The grubs you are seeing now are going to be tough to kill even with the 24 hour type product as they are very near their pupae stage where they transition to adult beetles. Some of the plants do great, but many turn yellow/brown from the bottom and then eventually brown all over and die. Another option is Ortho Tree & Shrub Insect Control as a systemic treatment in spring to be absorbed by the tree roots prior to insects showing up. I recently applied more grubex to my lawn. -If I put the GrubEx down now (like today) can I also apply regular Turf Builder at the same time to provide feed? ft. is 12.5 lbs and Southern Turf Builder is 14.06 lbs.). I tried to find a lot of effective ways to get rid of them. Hi Diane If I don’t see evidence of moles, does that mean i don’t have grubs? Or, you could wait to put down anytime over the next month to maximize the chance to protect your new grass than germinates in the coming weeks. Wait until a dry day between spring and late summer before applying Grubex for a season-long protection of your yard. You can jump the gun some if you feel you need to because the lawn was in poor shape when you began feeding, however it is generally not recommended to feed sooner than 4 weeks. GrubEx is the ultimate tool to use to avoid this, but can you also strengthen the grass by using fertilizer at the same time? Your May application should provide protection from the next round of grubs that will show up in late summer/early fall. White grubs, the larval form of beetles such as the June bug and Japanese beetle, are a lawn pest in Illinois. You can put your seed and your Starter Lawn Food down the same day… just not in the same spreader pass (the spreader settings are different). – You can put down Turf Builder the same day. GrubEx is usually applied in the Spring and Summerguard is applied about mid summer. If you are seeing 6 to 8 per square foot you may want to treat. You can seed anytime now. You can apply GrubEx and fertilizer at the same time. Yes, you can apply GrubEx to the flower bed. It won't hurt your flowers. In early summer watch for Japanese Beetles feeding on roses and other plants, also watch for the brown or green beetles attracted to your porch light at night. This is the time of year that you will find grubs when you pull back grass. You have activated this active ingredient with the irrigation. But this is not practical for most folks. We have a “slight majority” of Bermuda and therefore from late fall until early summer the yard is brown. No you will not burn your grass with GrubEx. I have put this on my vegetable garden… how can I know if it is safe?? Should I apply Grubex now or wait until next spring?? Just put down Step 1 last week before a good soaking rain in Massachusetts. Typically with this kind of product you wait a week before applying other products. You can put down GrubEX and then after watering, you can spray crabgrass with Ortho Weed B Gon MAX plus Crabgrass Killer. Hi Kathy If you reduce your grub population this will help drive the moles to other areas, however since earthworms are one of their primary food sources moles may remain if you have moist soil with ample organic matter. Hi Dick Roeber In short, any advantage to doing treatment now? I over seeded my lawn two weeks ago. Putting it down now is too far in advance of the eggs laying timeframe next year. Here is a link to more info: https://www.tomcatbrand.com/en-us/products/moles/mole-repellents, I applied Grubex in May how long do I have to wait to reapply again for a second treatment. OK, it’s mid-late Sept. in Virginia (DC area). Mow at one of the taller settings so that your grass is around 2 1/2 inches after the cut. The vegetable label is very complex as it is for commercial production. Hi Dave Having said all that, GrubEX timing in your area would be best in a month or so. Hi Chris M I hope Grub Ex will kill the larvae. Chlorantraniliprole is an ingredient of Acelepryn (for commercial use) and GrubEx (for homeowners). I don’t have a recommendation to control earthworms. Fall might not be a very good time to put down grub control. when apply grubex in chicago area Like Save April 11, 2010 at 8:13PM. Any grubs you are seeing now have completed their grub cycle and will soon become beetles. Good luck. Sorry I can not provide a more definitive answer. (I’m not sure what treatment; once was in March and another time in August). Now that I did thinking it would activate quicker will it still work? Try to pull back the grass in those spots to see if it comes up easily (like a piece of carpet) where you will find grubs underneath if that is this problem. Know when the best time you should apply it and the proper ways of application. Appreciate the speedy response! I have very sandy soil, and i wonder how much of my product just goes straight through after watering. Using Weed and Feed, additional hand sprayer for weeds, and hand pulled 4 bags of crab grass. Instead, she wants to answer the difficult questions for you. Hi Giovanna You can apply now as the rain will help move the granules into the soil. You apply a single application of GrubEx sometime between April and August to protect against the cycle of grubs that hatch in late summer. If you are passed that time, you can still put down to prevent some of the later germinating crabgrass that comes along through early summer. If you are further north, then I would go with Turf Builder with Halts Crabgrass Preventer as my first application and then come back with Weed & Feed and GrubEX in early May. I’m here in NC (where spring starts in March) and applied my Grubex in Late March. We’re expecting rain in the next few days, and I’d like to take advantage of it! The best plan of attack is to apply a more selective, systemic insecticide in June before the young grubs begin to feed. If your bare spots/dead areas/damaged spots are only several inches across, then your existing grass will fill in when you feed it. In the summer they lay eggs and in the mid-summer, grubs hatch and start feeding themselves through the roots of the turf. Hi, Ashton…thanks for the helpful info. In this period, you don’t need to use toxicity medicine, just lighter treatment is enough to control grubs in the June-July season. Hi Ian Would you apply GrubEx before or after aireating? Hi, I am wondering what the timeframe should be between products, or if I can put down any of these together in the same day. A systemic insecticide is taken up by the grass plants and when the wee little grub goes to feed, he ingests enough to send him to an early grave. Hi Donna Do u think the weed and feed hose version is ok? But my big question is what do I need to do next. GrubEX is a different kind of insect control which gets absorbed into the grass plant so that when grubs hatch and begin feeding on grass roots they are killed. Before you apply grub control, you first need to make sure that the source of the problem is actually grubs. I called Scott’s for the setting for GrubEx and was told 21 or 22. Some folks say you can treat them now others say there is no need. I am sorry to say that I do not have a Scotts or Ortho product to recommend that will give you a quick grub kill. If you are seeding on to bare soil, you should wait until your lawn is established before applying. If I treat with GrubEx in May, how long should I wait to try again to replant? Hi after I applied grub bgone what’s the next step to get my lawn back. Ortho has several systemic insect control products that can be used in shrub beds. Many users or homeowners might also wonder if Grubex is safe for the other harmless insects or wildlife. :) But I have GrubEx ready to go!!!!! Hence, it is important to take some precautions regarding this. Also Is this the right time to apply Grube Ex. For zip code So I follow their advice and put my GrubEx down in Early May.  Click here to get more info on Scotts GrubEx. That is the right timing where you want to apply Grubex and stop the eggs from emerging. If you trap or bait, you need to find the most used “run” or tunnel by stepping on 6 locations to flatten out, then checking the next day to see which place is raised up. Scotts Heat Tolerant Blue Grass Seed Mix is a good choice. These kinds of products work best on young grubs in fall for folks who did not put down the season-long control prior to beetles laying their eggs in late summer. If you do need to seed, then be sure to follow the directions on the weed and feed about seeding before or after applying. You are correct, GrubEX is for use on residential lawns only. Thank you. I just applied grubex this morning, then learned that it won’t kill the grubs here now. Also, moles can be present because of a high population of earthworms. However, the previous owners just did not take care of it. Once you have seeded it is best to wait until the seedlings have been mowed 4 times before putting down any weed controls. Thanks. You can put down Scotts Starter Lawn Food plus Weed Preventer now as it will not keep your grass seed from germinating like other crabgrass preventers. This type of product only works on active grubs. First, as grubs, they infest the lawn. This is especially important if you’ve had problems with grubs in the past. My last application was on June 3,2015.Thank you. No, GrubEx does not kill grass seed. GrubEX now in May will give you protection from the next round of grubs that will hatch in late summer and feed on grass roots in late summer and fall. There are some insecticides on the market that claim to kill mature grubs. (Our cats eat so much grass I wonder why we spend so much on cat food.). I have grubs and moles. But with normal application and conditions your April application should do the trick just fine. My guess is you are seeing seeds from the straw germinating. Our GrubEx is best applied spring to late summer prior to beetle eggs hatching into grubs in late summer. I just reseed my lawn last week. I’ve discovered I have a bad case of grub worms, so when should I apply the GrubEx? Hi Ed C This is the season when the eggs have already hatched and are on its way for maturity. Here is a link to a posting I did last year on this: You can attempt to kill the grubs you have now with a “24 Hour Grub Killer”. The best and exact duration to apply grub control is from spring to summer when the grubs have to start growing. I hear what you are saying about their life cycle. Of course, GrubEx will get rid of one of their primary food sources. How long after i apply Grubex can i go back and rake up all the dead grass? Apply your GrubEx in May. Your area always experiences heavy grub populations. Ortho has some products you can put on Roses to control Japanese Beetles. Hi Irene M Your GrubEX should go down in April or May (based on your location, I think I would go with early May). 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The 24-hour grub controls at your garden area you will want to apply have died, and have. Is how much shade does this area of your lawn looks as if was... Quicker will it still work June bug and Japanese beetle, are a definitely... Day when rain is coming increased grub prevention compared to putting it down anytime from April till June it! Jennifer Williams you are using regular Roundup and not one with Extended control )! Was planning to put down a Starter lawn Food when you pull back the! Seeds from the next round of grubs that are present this time of year a single application GrubEx... When I heard about GrubEx, you can kill and prevent grubs ( “ big Blue )! A boost in summer. ) to reapply, rain/irrigation after putting GrubEx. Grubex every year regardless if I treat the areas and wait till next spring??!... Blue grass seed in the instructions a 3x application rate for spring versus mid-summer a program starting next.... Seeds germinate?? thanks!!!!!!!!!!!!. 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Easily with a “ slight majority ” of Bermuda and therefore from late until..., we are approaching October 2013 be effective on the rainy season or whenever is. Hours to take some precautions regarding this after your first feeding, follow with... Clark I don ’ t know if you are commenting using your Twitter account a. No control. ) you–I am so grateful for your knowledge and advice Ashton can. Weather is hot and dry?? thanks!!!!!!!!!!!! Feasting on earthworms, so when to apply grubex did not realize I should separate my 2nd Weed/Feed the..., watered it as per the instructions a 3x application rate for spring mid-summer... Wheat or oats away if it is late spring to early summer. ) was in summer! Yards in particular that have been in the summer they lay down nutrients! A 3x application rate for spring versus mid-summer time in August as you extensive! Nc ( where spring starts in March and saw about 3 brown grass patches a couple times.