Is the grub population here in northern Michigan likely to be other than from the Japanese beetle? Do not use products containing ONLY lambda-cyhalothrin, gamma-cyhalothrin, bifenthrin, deltamethrin, cyfluthrin or permethrin for grub control. Use specified dosage of DYLOX 420 SL … Time for me to put down my grub control but in the process I found out some key important information. and D.A. Always wear rubber gloves and rubber boots when applying insecticides to turfgrass. Neither of the products listed grubs on the label printed on the bag and neither of the products would have controlled grubs. 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. 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. GrubEx with the active ingredient chlorantraniliprole is used for preventive soil treatment. 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. 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. They are not as effective as the preventive compounds in reducing grub numbers. Be sure the problem is grubs. Check the bag or bottle to determine what active ingredient the product contains. The eggs of both species hatch about 10 days after they are laid. Both come in a ready to use granular formular that can be put out with a hand or push … beetleGONE! Dylox … This information is for educational purposes only. 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. You don’t have to wait until your lawn becomes infested with grubs before you apply a grub killer, you can always use a… However, when applied in June or July they provide excellent protection against the next generation of grubs. I received this email question about alternative grub control insecticides. Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. How Late Can I Put Down Grub Control? Healthy turf with a few grubs may not need an insecticide. Dylox (Active ingredient: Trichlorfon) Widely used by professionals, Dylox kills grubs after they are in their third instar. 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 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. Triazicide will not control grubs. Do not use products containing ONLY lambda-cyhalothrin, gamma-cyhalothrin, bifenthrin, deltamethrin, cyfluthrin or permethrin for any phase of grub control. There are many products available, some with the same active ingredients. Ingredients such as carbaryl, trichlorfon or zeta-cypermethrin are curative and work on contact with grubs. Do not use preventive compounds such as clothianidin, thiamethoxam or imidacloprid now. For more information, visit https://extension.msu.edu. PLUS insect killer: also kills ants, ticks, bill bugs, chinch bugs, crickets, cutworms, earwigs, grasshoppers, and more. Granular vs Liquid Grub Killer; Grub killer vs grub preventer; ... GrubEx is made using the active ingredient called chlorantraniliprole. Not all the grub control products on store shelves will be effective this spring. 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. Jeffrey W. Dwyer, Director, MSU Extension, East Lansing, MI 48824. Several species of beetle larvae are categorized as white grubs. By the time damage is … They spend the winter as large grubs (0.75 inches long) some 2-6 inches below the soil surface. If you are applying a product containing clothianidin, thiamethoxam or imidacloprid, the lawn should be mowed prior to the application so that no weeds are flowering in the lawn when the insecticide is applied. 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. The product’s effects lasts for up to four months. 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. These products are used to prevent future grub problems, not to control the grubs present in the lawn in the spring. 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. I … Our results so far agree with the results of a test conducted a number of years ago in Kentucky by C.T. 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. 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. 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. The best alternative strategy to avoid grub damage is to improve your turf management practices to establish a dense root system in your lawn. Dave Smitley, Michigan State University Extension, Department of Entomology - 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. They will not work on grubs found in the lawn from the middle of October through the middle of May. Redmond and D.A. 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. 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. It will take 10-14 days for the grubs to begin dying after the insecticide is applied. 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. Finding one or two grubs does not indicate you need to apply a grub control product. These two insecticides are the only options if high numbers of grubs are found in the fall and in spring before early May. Grub damage may appear in home lawns from mid-September to November or from March to early May. 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. One of the most common questions we get from late Spring … In fact, most well-maintained lawns do not have visible damage from grubs. 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? 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. The Bayer 24 Hour Grub Killer contains DYLOX… Check out the MSU Turfgrass Management - Golf Course Certificate Program! The main ingredient is dylox … By the time I did further research and bought the BioAdvanced Grub Killer (due to having Make sure they are alive when you when get them. In Canada, it is a problem in Ontario and Vancouver, so Washington State is on the lookout for it also. As with the preventive products, lawns should be mowed immediately before applying carbaryl or trichlorfon to protect bees. Bayer Grub Control vs. Grub Killer Plus. 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. A lawn should be mowed at 3 to 4 inches in height and properly fertilized for maximum root growth. This is not true. Preventive products are the most effective. The two most common are carbaryl, which is Sevin and trichlorfon, which is Dylox. Japanese beetles like to lay their eggs on irrigated turf like golf courses, athletic fields and highly maintained lawns. Both compounds work equally well on Japanese beetle grubs. This article was published by Michigan State University Extension. MSU is an affirmative-action, equal-opportunity employer. Some people may want to consider a one-time treatment with a nematode that infects grubs: Heterorhabditis bacteriophora. There is another active ingredient in some insecticides called chlorantraniliprole that will also work in preventing grub problems, but it is less water soluble than the other preventive compounds mentioned above, so it can be applied any time after the grass turns green in the spring. Check the active ingredients. An online search indicates there are other products that will be available at other stores. Curatives are used in the spring to target adult grubs. 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). The preventive compound chlorantraniliprole should ideally be applied in April or May to control grubs that would be damaging turf in the fall as it will take longer for the material to move to where the grubs will be feeding in July. Research tests over the last 25 years have clearly shown that watering immediately after application helps to obtain good results. As a professional lawn care service we get a lot of questions about lawn maintenance. For more information, visit https://extension.msu.edu. Lawn sprinklers can be used if you do not have an irrigation system. When the ground warms up in spring, they resume feeding and can cause damage from the time the grass turns green until they pupate in mid-May. Insecticides used for grubs can be separated into two groups based on how they work: preventive chemicals and curative chemicals. 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. Here’s how to choose and use the right one for your lawn. Active … The critical issue with any grub control product is the active ingredient. Dylox 6.2 Granular Insecticide Pests Controlled. There are several products on the market that contain a combination of one of the preventive compounds and one of the above listed insecticides that “do not work on grubs.” The preventive ingredient will make it an effective choice for grub control. Apply chlorantraniliprole early (in April or May) for summer and fall grub control. The outbreak phase where turf damage is common may last five to 10 years. This information is for educational purposes only. In addition, grub control products that contain the active ingredient chlorantraniliprole are safe for bees, even when weed flowers are sprayed. Prevents lawn damage: use … Dylox 6.2 works by both contact and ingestion. The grubs feed from the beginning of August until late October. 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. May 22, 2020. Mowing prior to making the application will avoid this problem by removing the flowers. This also moves the chemical off the grass and will make the yard safe for children, pets and wildlife after the yard is dry. Both Bayer Advanced Grub Control and Bayer Advanced Grub Killer Plus are marketed to those battling with turf-destroying white grubs. Our research has indicated that carbaryl has been a little more effective on European chafer grubs than trichlorfon. Make sure to irrigate the lawn with at least. Here’s a review of products and best practices. One is the chemical approach. 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. 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. Do not apply any curative compounds in the spring after May 15 as grubs stop feeding in late May as they prepare to pupate. 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. There was a product available in years past from Spectrum that contained imidacloprid, but I did not see any in my visits the last two years (2016 and 2017). Annual bluegrass weevils (larvae and adult), armyworms, chinch bugs, cutworms, sod webworms, white grubs. 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. 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. 88: 846-854. 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. Japanese beetles and European chafers lay most of their eggs in July, but Japanese beetles continue laying eggs into August. 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. Presently, trichlorfon (Dylox or Bayer 24-Hour Grub Control) and Sevin are the fastest-acting, most effective homeowner insecticides for curative grub control. Two different types of chemicals are used at different times of the year for different targets, preventives and curatives. Before doing anything, it is important to make sure the problem is grubs. 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. Chlorantraniliprole applied in April will not work on spring grubs that are already present when it is applied. Scotts GrubEx vs Bayer Grub Killer Plus. DYLOX 420 SL Turf and Ornamental Insecticide is a soluble concentrate, which dissolves readily in water and is suitable for use in all power-operated ground sprayers. A garden center owner asks about alternatives to standard grub control insecticides. 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. Check for the active ingredient in a grub product. Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. If applied in early spring, the pesticide may move through the soil or partially degrade by the time the grubs hatch in late July. … The milky spore pathogen may not be as virulent to Japanese grubs now as it was in the 1940s during the. vs. 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. To contact an expert in your area, visit https://extension.msu.edu/experts, or call 888-MSUE4MI (888-678-3464). 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. However, Japanese beetles could become common in Petoskey over the next 10 years. 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. They are short-lived compounds that kill all life stages of grubs. April 1, 2014. Examples of products that contain these chemicals include Sevin® and Dylox®. These are most likely the larvae of European chafers if they are found in lawns without an irrigation system. 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. 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. 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. They can be abundant in non-irrigated home lawns if we receive frequent rain in July, but are scarce in lawns that are very dry in July and early August. Check out all the Grubs and insects controlled by these 2 products. 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. You can find my answer below. 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). Potter. In 2002, they were only found in New York, Pennsylvania, Massachusetts, Delaware, New Jersey, Connecticut, New Hampshire, Vermont, Maryland, Southern Michigan, and eastern Ohio. & grubGONE! The label lists the legal rate at which the product can be used. Water the lawn immediately after applying the insecticide. It kills about 50 … 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. To have a digest of information delivered straight to your email inbox, visit https://extension.msu.edu/newsletters. Finally, avoid spray drift or granular spreader drift to flower beds when applying thiamethoxam, imidacloprid, clothianidin or any insecticide for grubs other than chlorantraniliprole. The standard, and highly effective, grub control insecticides are products that contain imidacloprid, clothianidin or thiomethoxam. Look on the Internet for ‘Heteromask,’ ‘Nemasys G’ or Buglogical Control Systems. It contains only lambda-cyhalothrin or gamma-cyhalothrin. There are also products for sale that list grubs on the label that do NOT work for grubs. MSU is an affirmative-action, equal-opportunity employer. Products containing imidacloprid, thiamethoxam, clothianidin or chlorantraniloprole will not control grubs in the spring. I went to the garden store and picked up some bayer 24 hour grub killer plus with dylox. 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. Protecting bees and other pollinators. Scotts GrubEx Grub Killer and Preventer . Store insecticide products in a locked cabinet not accessible to children. 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. Also, irrigate your lawn immediately before and after applying the nematodes so as many as possible will make it into the soil. To activate Dylox you must immediately water the product into the soil with at least 1/2 to 1 inch of water. For more detailed information, on this go to the Michigan State University Turf website and see the grub control bulletin posted there. 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. There are two chemicals, carbaryl and trichlorfon, that are considered curative treatments. Entomol. Scotts GrubEx kills 25% more grub types versus original Grubex. Before doing anything, it is important to make sure the problem is grubs. 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. I thought others may have the same question. It is … 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 little benefit to exceeding this rate, and doing so is also illegal. It was also reported in Wisconsin in 2013. I found five to nine different products at each store. Dylox 420 SL Insecticide treats surface feeding insects on lawns, landscape and recreational turf, such as golf courses. If you confirmed grub damage the previous fall or spring, meaning you found lots of grubs, then you may want to use a preventive insecticide for one or two years to build a more dense turf that will be tolerant of grubs. There are different recommended timings for application depending on the active ingredient. Chlorantraniliprole can be applied as early as April and up to mid-July. The larvae of both species look almost identical. The profusion of different products can be rather mystifying. J. Econ. A single application of Scotts GrubEx stops A single application of Scotts GrubEx stops grubs all season long. It rescues and protects lawns and turf from grubs and certain other insects that feed on them. Grub Sprays vs. Granules. This article was published by Michigan State University Extension. Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned. This is a highly effective systemic insecticide that kills the target pests by both contact and ingestion. Prevent grubs from damaging your lawn with Scotts GrubEx1 Season Long Grub Killer. 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. It kills 25% more grub types vs. original GrubEx. Sometimes the best offense is the best defense. 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\". Easily apply with a Scotts broadcast, drop, handheld, or Wizz … Some of these products come in a granular formulation that is applied with a fertilizer spreader or some products are designed to be mixed with water and sprayed. Kills on contact: active ingredient Dylox kills grubs on contact. 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. 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 … It is best to apply the nematodes when grubs are present and when the soil temperature is above 50 degrees Fahrenheit.