What should insecticides used for treating wasp nests be combined with for effective results?

Combining insecticides with pyrethrins is highly effective for treating wasp nests because pyrethrins act quickly to knock down flying insects on contact. They are neurotoxins that disrupt the nervous system of insects, leading to rapid immobilization and death. This quick action is critical when dealing with aggressive wasps, as it minimizes the risk of stings to the person applying the treatment.

Using pyrethrins alongside an insecticide enhances the overall efficacy of the treatment, as the rapid knockdown effect can reduce the number of active wasps in and around the nest, making it safer for the applicator to proceed with further treatment or removal of the nest. This method enhances the overall safety and reduces the potential for encounters with aggressive wasps during the treatment process.