Q.I Have Grubs In 2 Raised Beds Do I Still Use The One Teaspoon Per 4 Ft. Grid? One Bed Is 2 By 8 And One 4 By 4. Thanks
Can I just lightly sprinkle and cover the surface?

GKH_Susan
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on March 21, 2023
The best time to use milky spore is in the fall, when grubs are actively feeding. Still use the 1 teaspoon per 4 feet spacing on top of soil, then water in. The article below says not to spread it.
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/what-is-milky-spore.htm
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