Can I swim in my pool after pyrethrin is sprayed?
Since pyrethrin is most effective at killing adult mosquitoes when airborne, applications are made to minimize the amount that settles. Therefore, a minimal amount of pyrethrin is likely to settle in your pool. In addition, any pyrethrin that may reach the water would be significantly diluted and broken down quickly. You can cover your pool before the spraying occurs; however, no special precautions or waiting periods are required for the swimming pools.
