Q: Two years ago I put down milky spore disease to control a grub problem in the lawn. Since I applied it, I've read that it doesn't take care of all grubs. Last year, I didn't have a grub problem.
What the heck is milky spore? Stephen in Ellicott City writes: “When is the best time to apply milky spore to control Japanese beetle grubs in the lawn? How should it be applied, and how often should ...