A re-application at this point will ensure that any missed eggs or grubs are eliminated. April is a good time. If you are against chemical products, then this is the best choice for you. You can … Take care to include areas at the edges of suspected grub damage. Grubs also attract other pests that feed on grubs. 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. To ensure the grubs are eradicated, apply the treatment again in two weeks. Grub Treatment – Grubs, Moles and Lawn fixes (15 Solutions) 1. Generally speaking, June is the ideal time to treat for white grubs in south Texas while early July is more appropriate in north Texas. Treating adult grubs are more difficult than the younger ones, so you need to get rid of them when they are in the larvae stage. If you have a severe grub infestation and want to use a chemical product to control grubs, you have a number of widely available options. Share this Post: Share on facebook Share on twitter Share on googleplus Share on linkedin Share on pinterest. When this commercially available bacterium is used, it infects the grubs and produces a disease. There might be some minor flaws in your lawn when you notice them properly. Preventative grub control can save you a lot of money in the long run. Grubs, or grub worms, are a common pest problem that affects lawns. Whether you are just starting out, maintaining or troubleshooting, you'll find advice and answers here for all your lawn care needs. Grubs in the soil come in contact with the spores through ingestion. If you find one or two grubs is normal and healthy, but if you find 5 or more grubs, you have a grub worm infestation that needs treatment to prevent further damage to your turfgrass. A good rule of thumb is to examine several soil plugs (up to one square foot per 1000 square feet of turf) from wide-ly scattered parts of the lawn. Raccoons, skunks, armadillos, or birds are digging up your yard. The University of New Hampshire does not support the use of one product over others of similar composition, nor does it guarantee the efficacy or quality of any product. One application of Scotts® GrubEx®1 can kill and prevent grubs for up to 4 months. © 2002-2020 The Scotts Company LLC. Recommended insecticides include trichlorfon. Help! Alway read the labels of the products you’re applying. If you see 6 or more grubs in each area, it may be time for action. We have found a few grubs while pulling up weeds. Some examples include imidacloprid, thiamethoxam and chlothianidin. Grubs Spotted in the Yard: A sure sign your yard needs a grub treatment is if you actually see grubs in the lawn, but that’s not always easy to see since white grubs rarely appear on the surface of your grass. Unfortunately attack by these grubs can happen to any lawn and can occur numerous times during a season. Dylox 6.2 G. Mechanical spreader. Come March, lawns already under attack by grubs are best treated in early spring or fall… This is important if and when you decide to treat the lawn. The best time to treat for white grubs is early in their life cycle when the larvae are small, or prior to eggs being laid in the soil. There are multiple procedures to treat grubs but nothing is as effective as GrubEx. If it’s windy and you spray an area of your lawn, there’s a chance the product could drift onto flowering plants nearby. … World rights reserved. In agriculture, they are important pests of forage, corn, sorghum and sugarcane. This product is readily available at many garden centers and can be sprinkled onto and watered into the soil according to the manufacturer's instructions. How do I know if I have lawn grubs? Grub Prevention Treatment. There are several other preventative products in the neonicotinoid class of insecticides. Grubs feed on the roots of grasses, so lawns will show wilting and browning of irregular shaped areas. Grub Control: It’s Time To Treat Grubs On Your Lawn. Learn more about these beetles. These chemicals and the products they’re in all require slightly different application timing in order to control the grubs while they’re active. Effective insecticide control products against grubs include imidacloprid, thiamethoxam and clothianidin. There are several easy-to-spot signs that you may have grubs in your lawn: To check if you have a grub problem, peel back a square foot of green turf in each of several areas of your lawn. While the research on milky spore in our region hasn’t been revisited recently, the latest research findings are that spring soils in Northern New England are too cold for milky spore to be effective. Grub control insecticides that contain bifenthrin, imidacloprid, or … This time of year (late summer and fall), only curative products can be used to effectively control grub populations. Only use chemicals to control grubs if necessary, and always follow all instructions on the label. If you treat for grubs in the spring, you must realize that another treatment may be necessary in the fall. Grubs, also called grub worms are the larvae of beetles. Sure that the grubs in your lawn are the larvae of Japanese beetles (identifying grub species requires a hand-lens because the differences are very subtle), In a warmer microclimate within southern New Hampshire. Disclaimer: The use of specific brand or trade names in this article is for educational purposes only. Since these larger April/May grubs … It is also known as grub worms, annual white grubs or just plain old grubs. Ingredients such as carbaryl, trichlorfon or zeta-cypermethrin are curative and work on contact with grubs. Product availability is subject to change depending on registration status in the State of New Hampshire and other factors. The only way to be sure that you have grubs is to scout for them in your lawn. Discover the most common causes of brown patches in your yard and how to treat them. By September, white grubs are fully-grown and are harder to kill. Grubs are dirty white, soft bodied, and robust with a brown head and six well-developed legs, with exception of green June beetle grubs, which do not have well-developed legs. The time to apply grub control for this year is from late June through mid-August. White grubs are a common turf and lawn pest, and beneficial nematodes can be a very effective (and safe!) A few grubs aren't a problem, but if you see lots of them when you turn the soil, take action. Generally, these chemicals are best applied from mid-June to early August. How to Get Rid of Grubs in Lawn. If you have a severe grub infestation and want to use a chemical product to control grubs, you have a number of widely available options. The key to controlling grubs is to kill them before they hatch and begin to cause damage to your lawn. Insecticides are most effective when applied at the second or third instar or larvae development stage. From about late April into early June, you can effectively use a product with the active ingredient chlorantraniliprole to control all species of white grubs we have in New Hampshire. This will provide the best preventative control of grubs for the next season. There are also several preventative products that include both a neonicotinoid and a pyrethroid, which provides control not only for grubs but also caterpillars, billbugs, and some other lawn insect pests. If you have a grub problem, the best time to kill them is when they are freshly hatched and living near the surface – that is usually between late summer and early fall. This material is applied so that it can get watered in and remain in the soil until grubs … This product is most effective when the grub is actively feeding so applying it 2 to 3 months in advance of severe grub feeding from June to August is recommended. Think of grubs as having 4 distinct stages during the year. Peel up a one square-foot section of grass and soil from that cut. Most of the grub control products available work best as a preventative, keeping the newly hatched grub … We thought our lawn was just stressed from drought last summer but now a LOT is just dead. To treat grubs it is important to first understand their lifecycle. To confirm whether you need to treat for grubs, examine several soil sections at least 3 to 4 inches across and 4 inches deep (sample sandy soils to greater depths). If you wait until August when … Traditionally, to treat for grubs in your lawn you would have to spray several potentially toxic chemicals on the leaf of the plant. The Ask UNH Extension Infoline offers practical help finding answers for your home, yard, and garden questions. Certainly there could be many reasons for lawns browning, especially in late summer when most grub damage occurs. You can treat for grubs in early fall as during that period the hatched grubs will be smaller in size,plus, they come closer to the soil’s surface, so killing them will be easy. In spring or early summer, apply a preventative grub control product, such as Scotts® GrubEx®1 to your lawn, following label directions. Spring Stage-In spring the grub is hungry and goes to the root zone of … Apply grub control pesticide. Visible lawn grub damage can be seen from late summer to early fall. The ideal treatment time for white grubs is around the time grubs hatch or in the first few weeks of development. Milky spore is a bacterium that is effective for controlling Japanese beetle larvae, provided the spring soils are sufficiently warm. As their larvae go through different stages of development, they eventually reach the stage where their damage is most visible. Because grubs are the offspring of June bugs, Japanese beetles, or European Chafers, they often recur season after season. It is recommended for use in the spring or early summer … Answers to common questions about grubs in the home lawn, Infoline Program Coordinator; Hillsborough County Office Co-Administrator, Copyright © 2021 University of New Hampshire, TTY Users: 7-1-1 or 800-735-2964 (Relay NH), Over-seeding bare or sparse areas in the spring or fall (preferred), current insecticide approaches for white grubs, Invasive in the Spotlight: Multiflora Rose. We did the Milky Spore thing back in 2002. If 10 or more grubs are present, treat your lawn for grubs. We know the best time to apply whichever material is the latest or greatest product to prevent grubs. Raccoons, skunks, armadillos, or birds dig up your yard searching for large, mature grubs … Grub Treatment Options. If there is significant grub damage, the grass should peel up quite easily. Before the dead patches even appear, your lawn feels spongy when stepped on, as it it were 
freshly laid sod. From about late April into early June, you can effectively use a … Some move as much as 12 inches below the surface. The most common (and, sadly, most effective) ways to kill grubs are chemical insecticides. Later stages can be more difficult to control and significant turf damage may have already occurred. 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. April 12, 2009 By Tech Support Leave a Comment. It is very easy to not notice them until it is too late. This blog, accompanying a live video we produced in the field, addresses some of the common questions we get at the UNH Extension Infoline about grubs. Grubs thrive in moist conditions, so don’t overwater your lawn while treating your infestation. The likely explanation is the grass is being destroyed by hungry, thriving grub worms living below the surface of the lawn. Some move as much as 12 inches below the surface. If the average count is between five and 10, whether or not to control depends on the health of your lawn, your tolerance for damage to the lawn, and the presence of natural controls. Using grub control may take a few seasons before the problem is entirely taken care of. That all said, if you do have grubs and animals are digging for them in the lawn, that can be detrimental to the health of your turf and to the appearance of your yard. The lawn will withstand the amount of feeding these few grubs do. These must be applied before mid-August. You need to apply the appropriate species of nematode at the appropriate time of year. However, contacting your local extension office to speak to the master gardener … Purchasing nematodes from a reputable supplier and applying them right away are important. /en-us/library/insect-control/how-control-lawn-grubs, https://www.scotts.com/sites/g/files/oydgjc106/files/styles/large/public/asset_images/T2002i_Grub-thumbnail.png?itok=w_K97SeE, Scotts® Turf Builder® SummerGuard® Lawn Food with Insect Control, Scotts® Turf Builder® Edgeguard® Mini Broadcast Spreader. Avoid treating in spring as the mature grubs have buried deep in soil and hard to reach with chemicals. These animals all love to dine 
on large, mature grubs. Timing of the Treatment for Grubs Makes all the Difference. Curative Pesticide Treatments – As previously mentioned, this the plan of attack to rid your lawn of it’s current grub infestation, and fast. These products should be watered in well, immediately after application. treat for grubs, examine several soil sections at least 3 to 4 inches across and 4 inches deep (sample sandy soils to greater depths). Milky spore may be worth a try if you are: Keep in mind that milky spore will take several years to achieve good results. However, Acelepryn is a non-toxic insect killer. When you’ve gone through and determined for certain that you have grubs and need to treat, you can use a curative pesticide that will kill grubs almost immediately. In spring or early summer, apply a preventative grub control product, such as Scotts® … If your white grub issue is May/June beetles, it is most effective to treat them early during their second summer. Signs of a Grub Problem. When the soil warms up again in the spring, the large, mature grubs move back into the upper soil levels, where they transform into adult beetles that emerge in early summer and start the whole process over again. Got questions? Try a synthetic pesticide for all grubs. GrubEx with the active ingredient chlorantraniliprole is used for preventive soil treatment. Milky spore is a common grub treatment, but it will only affect Japanese beetle white grubs. Beetles, like Japanese and chafer beetles, emerge in early summer, feed on plants in the garden, and lay their eggs in the soil in the lawn. Beetles fly, mate, then lay eggs in the soil. For those who use nematodes preventatively, they should be applied 2 to 3 times a season. You may be able to get an early read on a grub problem in your lawn if you notice the presence of adult beetles and patches of dying grass. The powder only has to be applied one time using a specially designed applicator. Replace the grass you’ve cut in short order to avoid any damage to the lawn. Typically, more than five grub worms per ¼ square foot warrants treatment and lawn grub control. Using a shovel or a lawn edger, you can make a cut in a one-foot section of your lawn where you suspect grub activity. Continued treatment is really unnecessary if grubs are not present. Hire a lawn care company to perform a preventative grub control treatment to your lawn EVERY year as part of a proactive lawn care program. It is the best natural option to treat for grubs in your lawn if you avoid chemical products. When to Control Grubs Controls are most effective on immature grubs. The spores germinate inside the grubs… Used at the first sign of grubs, this product should be thoroughly watered in after application. This treatment helps to ensure grub and bug free turf for 3 months from delivery. To apply this remedy, you have to make sure the soil of your yard has moisture. Native to Japan, Korea, and eastern China, multiflora rose (... *Pictured above: improperly applied mulch. These pests can be controlled, and your lawn can be restored back to its healthy state by getting rid of grub … Grubs burrow deep into the soil and rest through the winter. Examples of grub control products with neonicotinoids are Merit®, Meridian® and Arena®. Treating white grubs in the yard. Applying a preventative grub control product in the spring or early summer will provide much better grub control than waiting until after the damage has occurred. Don’t worry about the spring stage where large grubs do a quick spring feeding before becoming beetles. The later in the season these products are applied, the farther down the chemical needs to travel in the soil to contact the grubs. larvae of the European Chafer beetle. Suggested treatment time is between August 1 and September 15. Some of the best practices we recommend are: The two natural products we are asked about most are milky spore and nematodes. Their effectiveness is also quite variable, with wide ranging results at as low as 20 to 25% control. If you want … For many homeowners, grub control products are an important part of the annual lawn care routine. Keeping grass mowed high – at least 2”, and ideally 3” or more – which means that your grass will have a deeper, healthier root system that can tolerate more sub-surface insect feeding. The U.S. EPA designates this chemical as a low risk pesticide due to its low toxicity to bees and other beneficial insects. Treating Grubs. This is a very popular option being a natural and healthy pest control oil. However, they only work if used in the lawn in June and July. White grubs are the larval stage of various beetles, including cinch bugs and June beetles. You can even let your lawn dry completely, which will likely have an adverse effect on your lawn but may kill grubs naturally by depriving them of moisture. Part of effective lawn treatment for grubs involves identifying the grubs and the signs of their presence. Look for irregular brown patches of lawn that peel away easily from the soil, like carpet. You can focus your scouting on areas of the lawn that are showing symptoms of grub feeding. Grub preventatives are meant to kill the grub larvae that is recently hatched during the late summer. When the turf is lifted to expose the grubs, they usually will be lying on their sides in a C-shaped position. So, nothing be worried about this matter. These products can be effective, but are broad-spectrum and have a low residual, killing beneficial insects on contact as well as lawn pests like grubs. If you find five or fewer grubs per square foot, you need not apply grub control. Though it is a good choice for your lawn, you will cost you some extra efforts. Treatment for white grubs … Otherwise, use it when it … Damage can range from spots of brown in the grass to entire lawns dying. A grub infestation will cause patches of thinning turf, and these patches will gradually increase in size. Unfortunately, grubs and their notorious below-ground destruction may go unnoticed until late summer, when dead patches of grass suddenly appear in your lawn and begin to spread. A drought-stressed, underfed lawn will show grub damage faster, and with fewer grubs per 
square foot, than a properly-fed, well-maintained lawn. It is a natural option to treat grubs in the lawn. By David Cappaert, Michigan State University, Bugwood.org , via Wikimedia Commons Another tip-off that you have a grub problem is the increased activity around your yard from raccoons, skunks or birds. Nematodes also need to be applied when the species of grubs they control are active in the soil. They will continue to eat and grow until mid-fall, when they move deeper in the soil so they can survive through the winter. More than five grub worms per ¼ square foot than a stressed lawn why is... Practical help finding answers for your lawn feels spongy when stepped on, as it. Are against chemical products, then lay eggs in the soil the stage where large grubs do instar. Make sure that your lawn, following label directions and work on contact the... If your white grub on organic matter in the soil curatively, they only work used... 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