Does Rotenone Kill Wasps?

Nests in walls or in the ground can be destroyed by placing an insecticide dust (e.g., Sevin or rotenone garden dust) in and around the nest entrance during the night. ... These spray cans shoot the insecticide several feet.

What chemical kills wasps instantly?

Several options can be found in over-the-counter sprays, including pyrethrin. Pyrethrins are especially effective because they knock wasps down fast, says the University of California Statewide Integrated Pest Management Program. Typically, the solution is already properly mixed in the aerosol can and ready to use.

What liquid will kill wasps?

Some wasp removal experts say that you can handle small hanging nests with a bit of soapy water. Mix 2 tablespoons of dish soap in a spray bottle and fill with water. The soap will clog their spiracles, the pores that they breathe through, and will kill them almost immediately.