![]() ![]() These products are specific to grubs and will not harm any other species, so they are safe to use in the lawn or garden. The two best methods for ground-level control are milky spore and beneficial nematodes. There are methods to minimize this damage and ways that are respectful and non-harmful to the environment. Grub control! Grubs are the immature form of beetles and while grubs play an important role as a food source for many animals in the environment, they are a nuisance to our ornamental plants and edibles. How do I prevent future Japanese beetle damage? Other signs that you may have a grub problem is a lumpy-looking lawn made by moles tunneling and feeding on grubs. Skunks will also go after grubs in the lawn and, unfortunately, skunks can tear up a lot of lawn surface too. The lawn will also roll up like a carpet because the roots have been eaten away. Grubs congregate in sunny locations of the lawn and sometimes we notice their presence when large areas turn yellow. How do I know if I have grubs in my lawn? Pheromone traps need to be set at the very edge of property or at least 100’ or more away from target plants. Pheromone traps are very effective in luring Japanese beetles, however this method can inadvertently increase their numbers if used improperly. When the beetles or grubs ingest the neem oil, they perish. Neem does not kill on contact, rather it disrupts feeding. It's can be sprayed on infested plants and used as a soil soak. The sun also quickly degrades pyrethrin, so spraying later in the day is optimal.Īnother natural alternative is neem oil, extracted from the neem tree (a tree in the mahogany family native to Africa). It's a strong product and kills insects on contact, so it is best to avoid spraying open flowers to avoid harming beneficial pollinators. A naturally derived product effective on beetles is pyrethrin which is extracted from a type of chrysanthemum. You can either hand-pick them from affected plants and dispose of them, use insecticides, or set out pheromone traps. Japanese beetles can be controlled in several ways. I have Japanese beetles on my plants! How do I get rid of them? Before maturing into beetles they live in the ground as grubs, feeding on plant roots-especially lawn grass. Though attractive with their metallic green and bronze colors they cause a lot of damage in the landscape and garden, devouring leaves and flowers of ornamental and edible plants. Japanese beetles are a species of scarab beetles native to Japan and were first discovered in the U.S. ![]()
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