Q: Tiny black insects are making lace out of the leaves of my Yellow Bells. I spray with Sevin twice a day but it has had no effect. A: The tiny black insects are actually the frass (aka poop) from ...

Question: Several of my perennials and tree's leaves in my backyard get leaf miners every year. I've tried many insecticides (the latest was Sevin powder) already, but they don't work. Is there ...