Lou from North Haven, Ct writes
They come out once/year in Sep/Oct until the first freeze. The only thing that works is spraying Raid ant and Roach spray directly on each one.
DeltaGard G is not specifically labeled for blister beetles. We do carry other products that can be used (be sure to check product label for details on your specific area of treatment and application ratios, etc.
Answer last updated on: 05/31/2017