Scotts GrubEx Grub Killer and Preventer . Kills on contact: active ingredient Dylox kills grubs on contact. However, that is ancient history now, and there are three reasons why the Milky Spore product which can be purchased at garden centers may not be appropriate for a home lawn treatment: Although Japanese beetles have been found near you in Petoskey, it is more likely that people in your area will have June beetle grubs or European chafer grubs. Use Scotts GrubEx annually … The eggs of both species hatch about 10 days after they are laid. Dylox (Active ingredient: Trichlorfon) Widely used by professionals, Dylox kills grubs after they are in their third instar. The label lists the legal rate at which the product can be used. If there is nothing flowering in the lawn, there is nothing in it that would attract bees. Make sure to irrigate the lawn with at least. Our customers are looking for alternatives to the chemical options (especially with the publicity concerning honeybees) and I am hoping to help them find some. 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. 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. There is one insecticide product in a different chemical class that will give a similar level of grub control: chlorantraniliprole (Acelepryn). Current research also shows that watering with 0.5 inches of irrigation immediately after the application is essential to get effective results from these insecticides. This article was published by Michigan State University Extension. The product’s effects lasts for up to four months. Japanese beetles and European chafers lay most of their eggs in July, but Japanese beetles continue laying eggs into August. Do not use products containing ONLY lambda-cyhalothrin, gamma-cyhalothrin, bifenthrin, deltamethrin, cyfluthrin or permethrin for any phase of grub control. Redmond, C.T. By the time I did further research and bought the BioAdvanced Grub Killer (due to having Insecticides used for grubs can be separated into two groups based on how they work: preventive chemicals and curative chemicals. Jeffrey W. Dwyer, Director, MSU Extension, East Lansing, MI 48824. 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. Here’s how to choose and use the right one for your lawn. 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). There are different recommended timings for application depending on the active ingredient. They are preventive products that work very well on newly hatched grubs present in July, but do not work well for large grubs found from September to May. Do not use preventive compounds such as clothianidin, thiamethoxam or imidacloprid now. Always wear rubber gloves and rubber boots when applying insecticides to turfgrass. In the last 10 years, the amount of European chafer damage to home lawns in southern Michigan has steadily decreased to the point where it is unusual now to find populations high enough to damage turf. More research is needed on this, but it could cause problems for native bees or have long-term health effects on honey bees or bumble bees. ... GrubEx or Dylox… Bayer Grub Control vs. Grub Killer Plus. It will take 10-14 days for the grubs to begin dying after the insecticide is applied. Annual bluegrass weevils (larvae and adult), armyworms, chinch bugs, cutworms, sod webworms, white grubs. MSU is an affirmative-action, equal-opportunity employer, committed to achieving excellence through a diverse workforce and inclusive culture that encourages all people to reach their full potential. If you have treated for several years and you do not see evidence of grubs in your lawn or in the neighbor’s lawn, it may be time to stop treating. Granular vs Liquid Grub Killer; Grub killer vs grub preventer; ... GrubEx is made using the active ingredient called chlorantraniliprole. It kills 25% more grub types vs. original GrubEx. 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. It is important to realize that healthy turf, supported by frequent rain or irrigation, can support a grub population of five or more grubs per square foot with no visible turf damage. Is the grub population here in northern Michigan likely to be other than from the Japanese beetle? Preventive products are the most effective. The 4-H Name and Emblem have special protections from Congress, protected by code 18 USC 707. mowing your yard with the mower on the highest setting. We have had questions from our customers at our garden center here in Petoskey about the Milky Spore granular product by St. Gabriel Laboratories and I am having a hard time getting the facts. For more detailed information, on this go to the Michigan State University Turf website and see the grub control bulletin posted there. Check out the MSU Turfgrass Management - Golf Course Certificate Program! Some people may want to consider a one-time treatment with a nematode that infects grubs: Heterorhabditis bacteriophora. Grub Sprays vs. Granules. 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. When watered properly, this product can even penetrate … 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. 88: 846-854. An online search indicates there are other products that will be available at other stores. However, if the grub population is high or if there is a history of damage in an area, it may be necessary to consider using an insecticide for grub control. Jeffrey W. Dwyer, Director, MSU Extension, East Lansing, MI 48824. This chemical consistently reduced grub numbers by about 65-80% and research has shown that applications made before June are more efficacious than June or July application. 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. These products do not work as well (maybe 50 percent control) as standard products applied in spring or summer to prevent grub damage the next fall and spring. They are not as effective as the preventive compounds in reducing grub numbers. In 2002, they were only found in New York, Pennsylvania, Massachusetts, Delaware, New Jersey, Connecticut, New Hampshire, Vermont, Maryland, Southern Michigan, and eastern Ohio. These products are used to prevent future grub problems, not to control the grubs present in the lawn in the spring. However, for low-maintenance lawns, even if the turf is not killed from grub feeding, the thinned and weakened turf may be prone to weeds and drought stress. Do not apply any curative compounds in the spring after May 15 as grubs stop feeding in late May as they prepare to pupate. This is a highly effective systemic insecticide that kills the target pests by both contact and ingestion. and D.A. Use them in June or July to control grubs that would be damaging turf in the fall. The milky spore pathogen may not be as virulent to Japanese grubs now as it was in the 1940s during the. 1995. Have there been any studies done on its effectiveness? 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. It contains only lambda-cyhalothrin or gamma-cyhalothrin. Check the active ingredients. These products work well for above-ground feeding insects that live on the grass leaves or soil surface, but not for insects that feed on the roots. By the end of October, they are fully grown. Check the bag or bottle to determine what active ingredient the product contains. The two most common are carbaryl, which is Sevin and trichlorfon, which is Dylox. The standard, and highly effective, grub control insecticides are products that contain imidacloprid, clothianidin or thiomethoxam. In fact, most well-maintained lawns do not have visible damage from grubs. GrubEx with the active ingredient chlorantraniliprole is used for preventive soil treatment. In Canada, it is a problem in Ontario and Vancouver, so Washington State is on the lookout for it also. So, if you need to apply the preventive insecticide BEFORE the grubs are there, how do you know if you need to use an insecticide or not? Cabinet not accessible to children search indicates there are also products for sale list! 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