Once they go into hibernation, the milky spore treatment is no longer effective. The best time to apply the solution is when the grubs are feeding. That’s because you will need your soil in your garden to be above 65 degrees F when the grubs will be feeding. It is best to apply Milky Spore Grub Control in the Summer and early Fall. When should I apply milky spore grub control to my garden? It’s also completely harmless to people, pets, wildlife, and water bodies. It can kill the grubs in your garden within 7 to 21 days of the application while it’s still releasing even more spores.

When the grub decomposes it will also then release even more spores which will then go on to kill other grubs. Grubs will ingest the spores during their normal feeding patterns, and then the spores will multiply inside of the grub which is what will kill the grub. From there, the spores will multiply and then you will eventually be completely rid of the grub infestation in your garden. How does the milky spore powder work?Įssentially, you will need to spread the powder over the lawn where the grubs will ingest the spores. This product has been developed by the USDA and it is also approved by the US Environmental Protection Agency. The problem with Japanese beetles is that they will feed in large groups on any lush foliage, and while they don’t do much damage on their own they can wreak havoc in groups. So what are Milky Spores? To put it simply, Milky Spores will target your garden pests, particularly Japanese beetles, before the insects get big enough to cause problems and will eradicate them. Milky Spore Grub Control For Your Yard What does milky spore powder do? Other Japanese Beetle Management Strategies.What are the Pros and Cons of Milky Spore Grub Control to Deal With My Garden Pests?.Where to buy milky spores grub control?.When should I apply milky spore grub control to my garden?.

Milky spore grub control