To have a digest of information delivered straight to your email inbox, visit https://extension.msu.edu/newsletters. beetleGONE! Ingredients such as carbaryl, trichlorfon or zeta-cypermethrin are curative and work on contact with grubs. Jeffrey W. Dwyer, Director, MSU Extension, East Lansing, MI 48824. Time for me to put down my grub control but in the process I found out some key important information. The 4-H Name and Emblem have special protections from Congress, protected by code 18 USC 707. setting your lawn mower at the highest clipping height, returning grass clippings and chopped leaves to the lawn. If the need should arise to use a curative compound, make sure to keep the infested lawn watered and fertilized and treat the area again with a preventive application the next summer or the problem will likely reoccur in the fall or the following spring. Michael WillsonWillson's Garden CenterPetoskey, MI 49770. The profusion of different products can be rather mystifying. Be sure the problem is grubs. Our results so far agree with the results of a test conducted a number of years ago in Kentucky by C.T. Make sure to irrigate the lawn with at least. By the end of October, they are fully grown. However, when applied in June or July they provide excellent protection against the next generation of grubs. When watered properly, this product can even penetrate … and D.A. Preventive products are the most effective. Also, irrigate your lawn immediately before and after applying the nematodes so as many as possible will make it into the soil. It was also reported in Wisconsin in 2013. European chafers can devastate a lawn with little warning because the adult beetles fly at dusk when they emerge in June and early July, and can easily be overlooked because their evening flight to mate and lay eggs occurs after sunset. For quick kill now, Dylox (trichlorfon) is considered most effective with Sevin (carbaryl) as second. Do not use preventive compounds such as clothianidin, thiamethoxam or imidacloprid now. Applying them now will allow some of the chemical to leach through the turf or break down to the point that not enough insecticide will be there in July to control grubs. Always wear rubber gloves and rubber boots when applying insecticides to turfgrass. *What is 0.5 inches of irrigation? The standard, and highly effective, grub control insecticides are products that contain imidacloprid, clothianidin or thiomethoxam. Kills on contact: active ingredient Dylox kills grubs on contact. Michigan State University Extension programs and materials are open to all without regard to race, color, national origin, gender, gender identity, religion, age, height, weight, disability, political beliefs, sexual orientation, marital status, family status or veteran status. Use the right rate/amount of product. Both compounds work equally well on Japanese beetle grubs. In the last 10 years, the amount of European chafer damage to home lawns in … May 22, 2020. Lawns with a large, dense root system are much less likely to be damaged by grubs, and it is much more difficult for skunks and raccoons to dig and turn-over turf with a healthy root system. Products containing imidacloprid, thiamethoxam, clothianidin or chlorantraniloprole will not control grubs in the spring. These all look similar and feed on the tender roots of turf. Check out the MSU Turfgrass Management - Golf Course Certificate Program! Wisconsin, Minnesota and Iowa have now joined the club of Midwest states with lots of Japanese beetles, and they have been found in isolated locations as far west as Colorado. If rub worms are already coming for the lush lawn, using a grub worm preventer like Scotts GrubEx Killer and Preventer will keep them at bay. Check out the MSU Sports & Commercial Turf Management Certificate Program! European chafers are generally found in drier turf and their population levels will fluctuate depending upon how wet or dry the weather was the previous summer. If you see a dead patch, use a shovel to dig up a few Frisbee-size samples of turf around the bare spot to a depth of 2 inches and look for 0.75-inch long, C-shaped white grubs. Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. A garden center owner asks about alternatives to standard grub control insecticides. Dylox … I will put grubex down next spring as a preventer, I just needed something to kill the grubs now. Products containing only these ingredients will not work for grub control because the active ingredient binds with organic material and will not move down to where the grubs are feeding. Both come in a ready to use granular formular that can be put out with a hand or push … In 2002, they were only found in New York, Pennsylvania, Massachusetts, Delaware, New Jersey, Connecticut, New Hampshire, Vermont, Maryland, Southern Michigan, and eastern Ohio. Several species of beetle larvae are categorized as white grubs. They will not work on grubs found in the lawn from the middle of October through the middle of May. Entomol. An online search indicates there are other products that will be available at other stores. It contains only lambda-cyhalothrin or gamma-cyhalothrin. & grubGONE! This time of year (late summer and fall), only curative products can be used to effectively control grub populations. Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. The product’s effects lasts for up to four months. The best alternative strategy to avoid grub damage is to improve your turf management practices to establish a dense root system in your lawn. According to Cornell University, the milky spore organism, Paenibacillus popilliae, was the focus of a huge Japanese beetle biocontrol program 60 to 70 years ago, with over 100 tons of spore powder distributed throughout Pennsylvania, Ohio and surrounding states where Japanese beetle occurred at the time. The first two are Heterorhabditis nematode products and the third a business that sells Heterorhabditis nematodes. Dylox 6.2 works by both contact and ingestion. Prevent grubs from damaging your lawn with Scotts GrubEx1 Season Long Grub Killer. One trichlorfon product has “24 Hour Grub Control” in its name and would seem to indicate that it will kill grubs in 24 hours. David Smitley, Terry Davis and Erica Hotchkiss, Michigan State University, Department of Entomology - Dave Smitley, Michigan State University Extension, Department of Entomology - By the time I did further research and bought the BioAdvanced Grub Killer (due to having GrubEx with the active ingredient chlorantraniliprole is used for preventive soil treatment. In fact, most well-maintained lawns do not have visible damage from grubs. Redmond and D.A. If there is nothing flowering in the lawn, there is nothing in it that would attract bees. There are two chemicals, carbaryl and trichlorfon, that are considered curative treatments. Here’s how to choose and use the right one for your lawn. If applied too late, preventative products may not be effective as they work best on small grubs. Below is a short list of products now being sold for grub control as of May 22, 2020, in stores checked in the Mid-Michigan area. There is one insecticide product in a different chemical class that will give a similar level of grub control: chlorantraniliprole (Acelepryn). There is a widely sold trade name called Triazicide from Spectrum that lists grubs on the label and states it will control insects above or below ground and has a picture of a grub on the front of the bag. For more information, visit https://extension.msu.edu. Before discussing alternative management strategies for grubs, it is important to understand that if grubs and turf damage are discovered in April, the only insecticides that will be effective in April are carbaryl (Sevin) and trichlorfon (Dylox). Consider carefully whether it would be best to wait and apply a preventive later. By the time damage is … Finally, avoid spray drift or granular spreader drift to flower beds when applying thiamethoxam, imidacloprid, clothianidin or any insecticide for grubs other than chlorantraniliprole. Dylox 420 SL Insecticide treats surface feeding insects on lawns, landscape and recreational turf, such as golf courses. These active ingredients can be toxic to bees if the bees visit flowers that were recently sprayed. In addition, grub control products that contain the active ingredient chlorantraniliprole are safe for bees, even when weed flowers are sprayed. The nematodes may not kill as many grubs as the standard insecticide products, but they persist a long time and may even infect grubs for several years after they are applied. Check for the active ingredient in a grub product. They are short-lived compounds that kill all life stages of grubs. To contact an expert in your area, visit https://extension.msu.edu/experts, or call 888-MSUE4MI (888-678-3464). The two most common are carbaryl, which is Sevin and trichlorfon, which is Dylox. You can do this by putting a pinch of nematodes in a glass of water at room temperature for 10 minutes and check to see if they are wiggling. The grubs feed from the beginning of August until late October. Proper fertilization is important to prevent and allow the lawn to recover from grub damage. We don’t seem to be getting as many calls about lawns damaged by Japanese beetle grubs in the southern half of the Lower Peninsula, south of Lansing, but we are getting more calls from the northern Lower Peninsula as Japanese beetles continue to spread northward. I went to several of the local lawn and garden centers in the Lansing, Michigan, area to see what kinds of products are available that specifically claim they will work to control grubs. The Bayer 24 Hour Grub Killer contains DYLOX… A half-inch of irrigation is when lawn sprinklers are run until a container like a coffee mug, or several mugs, fills to a level 0.5 inches up from the bottom of the cup. I … Also, in the last two years several products have become available in an attach-to-hose bottle and are automatically mixed with water when applied. MSU is an affirmative-action, equal-opportunity employer. Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned. vs. Two different types of chemicals are used at different times of the year for different targets, preventives and curatives. At one garden center a clerk showed us two products, one containing only permethrin and one containing only bifenthrin, when we asked for products to control grubs. If you order or purchase a live nematode product for grubs, make sure you buy a Heterorhabditis nematode and not a Steinernema or another type of nematode. The main ingredient is dylox … Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned. Scotts GrubEx vs Bayer Grub Killer Plus. However, as European chafers and Japanese beetles have spread northward, lawns and other low maintenance turf areas in much of the Lower Peninsula north of Lansing and in the eastern half of the Upper Peninsula are seeing more damage. Our research has indicated that carbaryl has been a little more effective on European chafer grubs than trichlorfon. The outbreak phase where turf damage is common may last five to 10 years. To activate Dylox you must immediately water the product into the soil with at least 1/2 to 1 inch of water. It is … For more information, visit https://extension.msu.edu. Before doing anything, it is important to make sure the problem is grubs. Chlorantraniliprole applied in April will not work on spring grubs that are already present when it is applied. Lack of efficacy of in-vivo and putatively in-vitro produced Paenibacillus popilliae against field populations of Japanese beetle (Coleoptera: Scarabaeidae) grubs in Kentucky. Granular vs Liquid Grub Killer; Grub killer vs grub preventer; ... GrubEx is made using the active ingredient called chlorantraniliprole. You can measure how much irrigation is applied by putting out several coffee cups in your lawn and run the irrigation until they fill to a half-inch level above the bottom. Carefully check the label for ingredients. Dylox (Active ingredient: Trichlorfon) Widely used by professionals, Dylox kills grubs after they are in their third instar. A lawn should be mowed at 3 to 4 inches in height and properly fertilized for maximum root growth. Check out all the Grubs and insects controlled by these 2 products. Preventive controls include the neonicotinoids and chlorantraniliprole, but the timing for each approach is very different.The label directions for most neonicotinoids (products containing chlothianidin, imidacloprid, or thiamethoxam) indicate they should be applied \"when females are laying eggs\". The second major concern is to make sure the insecticide is thoroughly watered into the ground with at least a half-inch of irrigation or rain immediately after the chemical is applied. Sometimes the best offense is the best defense. Protecting bees and other pollinators. Store insecticide products in a locked cabinet not accessible to children. Grub Sprays vs. Granules. One is the chemical approach. Chemical Action and Usages: Dylox is an organophosphate insecticide in a granular form for use on lawns to control mole crickets, sod webworms, cutworms, grubs and other listed insects in turf. Both Bayer Advanced Grub Control and Bayer Advanced Grub Killer Plus are marketed to those battling with turf-destroying white grubs. Although the bag often says apply anytime from May to Aug. 15, it is highly recommended that products containing imidacloprid, thiamethoxam, clothianidin be applied and irrigated into the soil in June or July. Preventive products containing imidacloprid, thiamethoxam or clothianidin will consistently reduce 75-100% of the grubs if they are applied in June or July and if they are watered-in with 0.5 inches of irrigation immediately after application. Do not apply any curative compounds in the spring after May 15 as grubs stop feeding in late May as they prepare to pupate. As with the preventive products, lawns should be mowed immediately before applying carbaryl or trichlorfon to protect bees. In Canada, it is a problem in Ontario and Vancouver, so Washington State is on the lookout for it also. The eggs of both species hatch about 10 days after they are laid. However, even trichlorfon should not be evaluated for at least five days after application (assuming it rains or irrigation was applied), and carbaryl may need three to four weeks to be effective. There are no scientific studies conducted at any university that I know of where the Milky Spore product that is now available provided adequate grub control. Be sure the problem is grubs. These are most likely the larvae of European chafers if they are found in lawns without an irrigation system. Japanese beetles like to lay their eggs on irrigated turf like golf courses, athletic fields and highly maintained lawns. Not all the grub control products on store shelves will be effective this spring. It kills 25% more grub types vs. original GrubEx. There is an erroneous philosophy being perpetuated that because we have European chafers and Japanese beetles in the area, it is necessary to treat every year or your lawn will be damaged by grubs. Bayer Advanced Season-Long Grub Control (or Bayer Advanced Merit) - Granular, Bayer Advanced Season-Long Grub Control and Turf Revitalizer - Granular, Premium Grub Control (Do not confuse with “Premium Insect Control”), Bayer Advanced Complete Insect Killer Liquid attach-to-hose-bottle, Bayer Advanced Complete Insect Killer Granules - Granular, Bayer Advanced 24 hr Grub Killer Plus - Granular, Spectracide Triazicide Insect Killer for Lawns - Granular. They are not as effective as the preventive compounds in reducing grub numbers. Bayer Grub Control vs. Grub Killer Plus. You can do this by following Michigan State University Extension’s recommendations of setting your lawn mower at the highest clipping height (3-4 inches); applying at least 2.5 pounds of actual N per 1,000 square feet of lawn per year using a slow-release fertilizer several times each year; watering during dry periods; and returning grass clippings and chopped leaves to the lawn instead of collecting and removing them. 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