06/09/2026
The county got back to me about the mosquito fog’s ingredients; Kontrol 30 30. This is a mix of 30% Permethrin and 30.0% Piperonyl Butoxide along with 40% inert petroleum distillates. Beyond Pesticides determined a mass monarch mortality event was caused by similar chemicals at the Pacific Grove Monarch Sanctuary. I don’t know what the solution is. But this isn’t helping monarchs.
The mass mortality event of monarch butterflies in California yet again shows how pesticides threaten pollinators and biodiversity.