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. Before the Japanese beetle invasion, we never worried about the adult stage masked chafer. The Japanese beetle has become a major pest of crops, lawns, and ornamental plants in Missouri. Japanese beetles can be easily removed from plants with your hands. Milky spore is the common name for the bacteria B. popilliae, the active ingredient used to control Japanese beetles. Cultural Control of Grubs: Because Japanese beetle eggs and young grubs have difficulty surviving in relatively dry soil conditions, withholding irrigation during peak adult beetle flight may help to reduce grub populations. We have tips for identifying damage, understanding the Japanese beetle's lifecycle, and getting rid of this unwanted insect pest! Managing Adult Beetles Grub Control in Lawns. Here’s a chart of the grub / Japanese beetle life cycle . Learn When to Treat for Grubs. Eliminate Japanese Beetle Grubs for Ten Years or More! We put the grub killer down and watered. These eggs turn into grubs that feed on the roots of grass. This is why we apply preventive grub control in July to early August. grubGONE! For the past few weeks we noticed that the yard was turning bronw in some areas. Signs of Japanese Beetle Damage. In fact, 2017 was the year when the highest populations were recorded thus far. Our grapevines go up a good ten feet and stretch the length of the porch, so covering them isn’t practical. Our Japanese Beetle Grub Control for lawns solution is an easy application that helps prevent damage from these invasive pests. Three preventative insect sprays starting in June and going thru August will prevent 99% of the damage that would otherwise occur. The bacterial powder Bacillus popillae causes a milky spore disease specific to Japanese beetle. Life Cycle and Habits. These grubs live in the soil during development and survive by feeding on the roots of grass. Japanese beetles are easy to spot in the garden. These nematodes boast a deep-moving active-hunting with cruising characteristic which make them superior to many other species for grub control and Japanese beetles. A simple row cover can keep Japanese beetles from getting access to your plants, though this doesn’t work in all cases. Japanese beetle management. Think you have Japanese beetles? More research is needed to demonstrate the efficacy of milky spore products before we can recommend them for grub control. Don't squish the beetle to kill it. Previous. Traditional preventative grub control had been easy. Application to grassy areas in early summer or late fall allows grubs to ingest the bacteria, which will kill them before spring. Pathogenic fungi, nematodes, and protozoans may help decrease grub populations. The entire life cycle requires about one year. Control of Japanese Beetle White Grubs in Lawns. Grub treatments are usually done primarily to prevent lawn damage, rather than to control beetles. Also, consider why you want to manage grubs. Effective Japanese beetle control will now require multiple phases: Best Preventative for Trees and Shrubs Provides long term control of Japanese beetles; Safe for people, pets and beneficial soil organisms; Milky Spore is a naturally occurring microscopic bacteria (Bacillus popilliae) that kills Japanese beetle grubs before they Japanese Beetles will be a major issue for 2018 due to the high grub populations in the fall 2017 and excessive moisture of 2018. Another way to control Japanese beetles would be to simply plant things that they don’t like to eat! OTHER JAPANESE BEETLE CONTROL OPTIONS COVER YOUR PLANTS. The pHs of the soils in our trials were only changed a few However, adequate soil moisture in late-August and September can help damaged turf recover from grub.. 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