Ricky writes
Butterflies are insects and will be affected by an insecticide like Suspend and any other product the same way the target pests like ants and spiders would be. The best way to reduce the chance of the Suspend affecting the butterflies and beneficial insects is to spray later in the day when they are not active and are back in their homes/nests, and try to avoid blooms of flowers and plants they would be using for pollenation. Most structural insects you would be targeting are not going to be landing in the same places they would be so it helps keep you from doing as much damage.
Answer last updated on: 06/05/2017
