If they get out of the larvae, they will destroy every root of the lawn. Primary grub damage results from grubs feeding on grass roots. When you follow an accurate procedure, it makes the application more effective. You must however, apply it no later than mid-May since it needs time to reach the depth of soil to kill the upcoming 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. Grubs usually do not enter houses; still they can cause a lot of trouble for landowners. 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. 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. The grubs eat the roots and destroy the roots; therefore, the area will be easily peeled off. Learn All About The Dragon Wing Begonia And Grow It. It may look easy to maintain your garden or lawn, but the attack of grubs can lead to huge damage in your garden or lawn. Before we talk about the entry of grubs in your lawn, let us give you a brief description on grubs. So, keep on reading till the end to know more. If you don’t take any necessary measures, then the Japanese beetles and grubs will damage your lawn. Timing Is Everything. The bag I have says you can put it down as early as April, which seems to be pushing it to me, and maybe especially for you up there in Michigan. 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. To begin, mow and water your lawn. Learn All About The Amazingly Adorable Panda Plant To Grow One For Yourself! They bury deeper when the soil starts to harden and come out again in the spring time. Due to weather changes, the grass might become dry or change its color to brown. How To Control Lawn Moss? Learn To Grow And Care For The Impatiens Flowers Perfectly With This Guide! Save my name, email, and website in this browser for the next time I comment. To stop the eggs from turning into adults, you need to apply GrubEx and stop them. – Prevention And Cure. They start feeding on the organic matter of the soil immediately after hatching. Applying preventive grub control in the grass is the best course of action if you had pest issues the previous year. Finding one or two grubs does not indicate you need to apply a grub control product. Healthy turf with a few grubs may not need an insecticide. To make sure you time it right, you will want to apply it no later than mid-summer. 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. 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. As the name suggests, its origination is from Japan. But, some patches can also be a result of a grub attack. A third concern is the rate at which the insecticide is applied. We hope that you got the answers for, ‘When to apply GrubEx?’ and ‘When is the best time to apply GrubEx?’. There are two chemicals, carbaryl and trichlorfon, that are considered curative treatments. A European Chafer is medium in size with an oval body that is brown, reddish, or copper in appearance. The number 1 question I get in spring is when is the best time to apply GrubEx since the package says to apply spring to late summer? 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. Grow The Wonderful Peperomia Obtusifolia Plant For Your House With This Best Guide! The critical issue with any grub control product is the active ingredient. Apply chlorantraniliprole early (in April or May) for summer and fall grub control. Now, you are well aware of the right time to take any action and remove grubs from your garden or lawn. Below is the comparison table of top 3 best grub killer that will help you quickly make the perfect choice. Do not use products containing ONLY lambda-cyhalothrin, gamma-cyhalothrin, bifenthrin, deltamethrin, cyfluthrin or permethrin for grub control. The mating season for these grubs is between the middle of June to July-end. Almost, all grubs have the same life cycle. As we mentioned earlier, grubs attract wildlife. You can make an attempt to dig the particular area using a shovel. When the eggs start hatching, the grub treatment will kill the emerging larvae, so they will not develop to become mature insects. If you notice spots or holes in a few parts of the lawn that are dug. If applied in early spring, the pesticide may move through the soil or partially degrade by the time the grubs hatch in late July. Regarding the moles, understand that they also eat earthworms, so you could still get moles in your yard going after the earthworms. This results in the hatching of more grubs. Regionally, European chafers are a much bigger problem than they used to be. It kills 25% more grub types vs. original GrubEx. Japanese Beetle. As soon as they hatch, they continue to molt and eat till the ground begins to freeze. These grubs can harm your lawn in just one season. Check the bag or bottle to determine what active ingredient the product contains. Preventive products are the most effective. Our research indicates they will kill 20-80% of grubs when applied in September or 20-55% when applied in late October. GrubEx is a material that is specifically designed to treat grubs. Insecticides used for grubs can be separated into two groups based on how they work: preventive chemicals and curative chemicals. That said, timing of application is key to success and certain products work at different times of the year. The common reason for a thin lawn with a few minimal patches can be due to the lack of fertilizers. Before they can garden successfully, 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. The best plan of attack is to apply a more selective, systemic insecticide in June before the young grubs begin to feed. Lawns start to turn green after warming up. Japanese beetle grubs also feed on turf roots in home lawns, but they are not usually as much of a problem on home lawns as European chafers can be. There are also products for sale that list grubs on the label that do NOT work for grubs. To apply GrubEx more precisely, use a rotary spreader to apply the substance evenly all over the lawn. 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. There is little benefit to exceeding this rate, and doing so is also illegal. Our research has indicated that carbaryl has been a little more effective on European chafer grubs than trichlorfon. When the sun comes out, they sink into the soil and during the night, they come out and look for a mate. Of course, GrubEx will get rid of one of their primary food sources. Knowing this, I went out and got my bags of GrubEx and applied it 2 days ago. Some fertilizers also contain herbicides that kill weeds. Before doing anything to control grubs or even to re-seed an area that is not starting to turn green, it is important to make sure that the problem is indeed grubs. There are various types of treatment for killing grubs. After applying GrubEx to your lawn, you do not have to wait to apply a straight fertilizer. When the grubs feel disturbed, they turn into C shape. 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? Read the composition, ingredients, and price properly before making a purchase. With a good preventing insecticide application made from late May to August, you will not see any grubs in fall or next spring. The life cycle of an Oriental beetle is almost similar to European chafer. Get The Resplendent Peacock Plant Growing In Your House With This Best Guide! Michigan today has 450 varieties of soil! May 22, 2020. Grubs are usually Asiatic, Japanese beetles, or European chafers. Here is a list of a few indications for the treatment of your lawn. If you see a dead patch, dig up a few shovelfuls of soil at the edge of the bare spot and look for 1-inch long, C-shaped grubs. Learn All About The Madagascar Palm And The Right Way To Care About It! Do not use products containing ONLY lambda-cyhalothrin, gamma-cyhalothrin, bifenthrin, deltamethrin, cyfluthrin or permethrin for any phase of grub control. Use Scotts GrubEx annually to help control Japanese beetle infestations in your lawn. Few grubs in a healthy lawn do not need an insecticide. Grubs are visible from the month of August to the month of October. Use GrubEx only once a year, in the spring through early summer, before insect eggs hatch. It will take 10-14 days for the grubs to begin dying after the insecticide is applied. Killing grubs will prevent the damage of your lawn. They are short-lived compounds that kill all life stages of grubs. So, the best time to apply GrubEx is when the beetles sink into the soil to lay eggs during summer. They are not as effective as the preventive compounds in reducing grub numbers. Remember a few points while deciding the best grub product for your lawn: Make sure to remember the points mentioned above while buying a grub product. Do not use preventive compounds such as clothianidin, thiamethoxam or imidacloprid now. Just like various types of insects, grubs go through a larval stage of life. GrubEx is a substance that is used for the treatment of grubs. If it easily peels off, then it is a sign that you have grubs in your lawn. The eggs of both species hatch about 10 days after they are laid. To kill grubs in the spring or fall, use carbaryl or trichlorfon. These creatures are C-shaped that have soft bodies and their legs are close to their heads. To have a digest of information delivered straight to your email inbox, visit https://extension.msu.edu/newsletters. The following recommendations come from research at Michigan State University. 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. Always try to treat the lawn before the larval phase ends. Around 2.88 pounds of GrubEx will be required for 1000 per square of the area. 4 Simple Secrets for Vegetable Garden Pest Control, Why Are My Cucumber Plants Turning Yellow? A dry lawn enables easy controlling of grubs. We know the best time to apply whichever material is the latest or greatest product to prevent grubs. You will also note a direction on the package to not apply to waterlogged soils and to water after application. The life cycle of the Japanese beetle is similar to European Chafer. One competing maker even had in the instructions a 3x application rate for spring versus mid-summer. Check for the active ingredient in a grub product. A larva starts feeding immediately on the roots of plants and grasses. 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. If you want to check their presence, peel the damaged area and see if there are 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. Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned. 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. Generally, it helps in preventing root damage caused by grubs or worms for a longer period of time (almost four months). Choose The Bee-Friendly Pesticides To Help It! 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. In addition, grub control products that contain the active ingredient chlorantraniliprole are safe for bees, even when weed flowers are sprayed. Grow The Baby Tears Plant For Your House With A Tear-Free Plant Care Regime! Analyze your lawn properly. Chlorantraniliprole can be applied as early as April and up to mid-July. 1. An online search indicates there are other products that will be available at other stores. But these signs can also indicate that your lawn has grubs. 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. The visibility of grubs is also dependent on your area. You wake up one day and a greening up lawn isn't greening up. GrubEx is the most powerful tool to treat grubs present in your lawn. Its effects remain up to four months. If you have been reading my blog postings, I have written that Scotts entomologists and those with University Extension Services suggest the best timing is in May to give the product time to be washed into the soil to protect the lawn from the grubs that will show up in late summer. 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. You can also apply it again afterward. If the grub count is more than this, it is advisable to use an insecticide or grub control product. This can also be between May end and July end. There are some products that show grubs on the packet but they do not work for the treatment of grubs. Jeffrey W. Dwyer, Director, MSU Extension, East Lansing, MI 48824. Not every grub control products are effective. The outbreak phase where turf damage is common may last five to 10 years. Michigan State University turf expert Ron Calhoun came up with this dandy little phrase as an annual reminder of the best time to kill weeds. This process should be done once a year. It is a sign that your lawn needs to be treated immediately. Grubs are larvae of some Japanese beetles. You might notice some grubs beneath the soil. Here are the main things you need to … The areas in the lawn that have yellowish or brown color patches also indicate that your lawn needs treatment. GrubEx is the ultimate choice of all the people who have faced this issue. But from what I gather the stuff is slow to break down and going a few weeks early shouldn't make much difference. The active ingredient in Scotts Grubex is chlorantraniliprole. Carefully check the label for ingredients. European Chafer. Be sure the problem is grubs. Someone suggested to me some years back that if you apply three times the amount of Grubex per so many square feet in the spring, you will kill the then-big grubs. The following excerpt from a Michigan State University bulletin explains when it and other grub killing pesticides should be applied. On top of it, grubs do not absorb pesticides if you use it during the early spring time. European chafer grubs may be found in all locations in Michigan’s Lower Peninsula and in much of the Upper Peninsula. Use the right rate/amount of product. 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. 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. They spend the winter as large grubs (0.75 inches long) some 2-6 inches below the soil surface. 4. They hatch and immediately start feeding on the roots of the plants and grass. Apply on the soil as a spray according to the package instructions. Do not apply any curative compounds in the spring after May 15 as grubs stop feeding in late May as they prepare to pupate. An adult oriental beetle is grey and has black splotches. 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. 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