Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. ... GrubEx or Dylox… This also moves the chemical off the grass and will make the yard safe for children, pets and wildlife after the yard is dry. It contains only lambda-cyhalothrin or gamma-cyhalothrin. I received this email question about alternative grub control insecticides. 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. Make a regular practice of mowing your yard with the mower on the highest setting (3.5-4 inches). Our research has indicated that carbaryl has been a little more effective on European chafer grubs than trichlorfon. Bayer Grub Control vs. Grub Killer Plus. Japanese beetles like to lay their eggs on irrigated turf like golf courses, athletic fields and highly maintained lawns. The bacterium in this product will only infect Japanese beetles and not any other species of grubs, while the most damaging grub to Michigan lawns is the European chafer. Both Bayer Advanced Grub Control and Bayer Advanced Grub Killer Plus are marketed to those battling with turf-destroying white grubs. David Smitley, Terry Davis and Erica Hotchkiss, Michigan State University, Department of Entomology - Now it has spread throughout Ohio, Michigan (all of the Lower and half of the Upper Peninsula), northern Indiana and into eastern Illinois. This information is for educational purposes only. Both compounds work equally well on Japanese beetle grubs. Dylox 6.2 works by both contact and ingestion. 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. By the time I did further research and bought the BioAdvanced Grub Killer (due to having Redmond and D.A. For more information, visit https://extension.msu.edu. Entomol. April 1, 2014. By the end of October, they are fully grown. 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. 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. Grub Sprays vs. Granules. The eggs of both species hatch about 10 days after they are laid. This information is for educational purposes only. Check for the active ingredient in a grub product. Consider carefully whether it would be best to wait and apply a preventive later. In 2002, they were only found in New York, Pennsylvania, Massachusetts, Delaware, New Jersey, Connecticut, New Hampshire, Vermont, Maryland, Southern Michigan, and eastern Ohio. In the last 10 years, the amount of European chafer damage to home lawns in … Weeds that flower again after mowing are much safer than weed flowers that were sprayed directly with insecticide, but some of the insecticide is absorbed by the roots and will move into the pollen and nectar. There is little benefit to exceeding this rate, and doing so is also illegal. Dave Smitley, Michigan State University Extension, Department of Entomology - Be sure the problem is grubs. Some people may want to consider a one-time treatment with a nematode that infects grubs: Heterorhabditis bacteriophora. I will put grubex down next spring as a preventer, I just needed something to kill the grubs now. 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. Here’s a review of products and best practices. Regionally, European chafers are a much bigger problem than they used to be. One of the most common questions we get from late Spring … Unfortunately, the Milky Spore product you asked about did not provide any grub control in the first year of a test we are conducting at Old Channel Trail Golf Course near Ludington, Mich. We plan to continue this test for two more years. Active … Healthy turf with a few grubs may not need an insecticide. As a professional lawn care service we get a lot of questions about lawn maintenance. The BAYER advanced 24 hour Grub Control contains a chemical called DYLOX that is known to eliminate pesky insects and grubs within a maximum period of 24 hours. It is best to apply the nematodes when grubs are present and when the soil temperature is above 50 degrees Fahrenheit. Check out the MSU Turfgrass Management - Golf Course Certificate Program! These are most likely the larvae of European chafers if they are found in lawns without an irrigation system. Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned. A garden center owner asks about alternatives to standard grub control insecticides. These two insecticides are the only options if high numbers of grubs are found in the fall and in spring before early May. How Late Can I Put Down Grub Control? Michael WillsonWillson's Garden CenterPetoskey, MI 49770. & grubGONE! Easily apply with a Scotts broadcast, drop, handheld, or Wizz … Potter. Unfortunately, there are not any biological control products that you can purchase at the garden center that will give the same level of control as the standard insecticide products. It was considered to be a successful effort because populations of Japanese beetle decreased 10-fold or more at most sites within five years of when the spore powder was distributed. Do not use products containing ONLY lambda-cyhalothrin, gamma-cyhalothrin, bifenthrin, deltamethrin, cyfluthrin or permethrin for any phase of grub control. There are also products for sale that list grubs on the label that do NOT work for grubs. This is not true. 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). 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. For more information, visit https://extension.msu.edu. GrubEx with the active ingredient chlorantraniliprole is used for preventive soil treatment. Two different types of chemicals are used at different times of the year for different targets, preventives and curatives. Jeffrey W. Dwyer, Director, MSU Extension, East Lansing, MI 48824. Alternatives: Synthetic Chemical Inhibitors - Preventative Curative Control •Organophosphates - Dylox® (Bayer has voluntarily canceled its production of most products containing the chemical), Diazinon® (off residential market) and ... (Acelepryn® & GrubEx … 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. Apply chlorantraniliprole early (in April or May) for summer and fall grub control. 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. Check out the MSU Sports & Commercial Turf Management Certificate Program! If customers ask about the safety of standard neonicotinoid grub control products (imidacloprid, clothianidin and thiomethoxam) for honey bees and pollinators, you can tell them that if the lawn is mowed before the insecticide is applied that it will be safe for honey bees because no open flowers (flowering weeds) will be present when the lawn is treated. Curatives are used in the spring to target adult grubs. 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. They will not work on grubs found in the lawn from the middle of October through the middle of May. 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. They spend the winter as large grubs (0.75 inches long) some 2-6 inches below the soil surface. Both come in a ready to use granular formular that can be put out with a hand or push … 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. 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. I thought others may have the same question. Research tests over the last 25 years have clearly shown that watering immediately after application helps to obtain good results. For quick kill now, Dylox (trichlorfon) is considered most effective with Sevin (carbaryl) as second. Dylox 6.2 Granular Insecticide Pests Controlled. One is the chemical approach. 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. When watered properly, this product can even penetrate … If applied too late, preventative products may not be effective as they work best on small grubs. The first two are Heterorhabditis nematode products and the third a business that sells Heterorhabditis nematodes. 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. Visit the Gardening in Michigan website to find a series of Smart Gardening bulletins that include one on fertilizer basics and mowing high for grub and weed control. It will take 10-14 days for the grubs to begin dying after the insecticide is applied. Not all the grub control products on store shelves will be effective this spring. Granular vs Liquid Grub Killer; Grub killer vs grub preventer; ... GrubEx is made using the active ingredient called chlorantraniliprole. After irrigation or rainfall, grub control is established in as little as 24 hours and penetrates thatch up to ½ inch thick. Have there been any studies done on its effectiveness? 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 active ingredients are usually shown on the bottom right or left of the front of the bag and listed as a percent of composition. 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. 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. 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