Dear Dr. Dirt: Every July I get cicada killer wasps in my yard. They dig up huge mounds of dirt in my grass, which is unsightly. Nothing seems to kill the wasps. They burrow back under ground in ...

Spectracide Triazide Insect Killer, Sevin and Ortho Flower, ... I got some of the 'new' Sevin concentrate and when I went to mix it, it seemed like I needed more. Am I right? A.