Sam from Chicago, Il writes
Bifen IT is not labeled for beneficial insects like butterflies. However, it is not really selective so it has the potential to kill them if they come in contact with a treated area. To avoid contacting beneficial insects, apply in the early morning or late evening when they are less active in the area. We would also recommend avoiding application to blooms to limit contact. A better option would be to use Mavrik Perimeter. There is no lingering odor or visible residue, and when dry, it is non toxic and non repellent to honey bees. We would still recommned you apply in the early morning or late evening when they are less active in the area
Answer last updated on: 05/06/2019
