Still have a question? Contact us at Ask Extension. ![]() Apply at the recommended rate and follow label directions. Chemical control - Dust entrance holes with a registered insecticidal dust labeled for controlling ground-nesting bees and wasps.In the long term, it is better to correct the reason why the wasps are attracted to your landscape. Use an insecticide only as a last resort.Or use landscape fabric and mulch to cover exposed soil to reduce or prevent digging. In ornamental beds - Cover bare soil with 2-3 inches of mulch or plant a thick groundcover.To temporarily discourage activity run a sprinkler over the nesting area. Females will fly up into tree canopies to capture and paralyze cicadas. Cicada killers are a native wasp species, and as their name implies, they hunt cicadas. They have large, rust-colored eyes as well as orangish-red wings and legs. ![]()
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