Donald from Puerto Vallarta, Mexico writes
If I wash screen with plain water would I have to re-apply?
Martins Permethrin 10% is only mixed with water and sprayed on surfaces. Spray outside surfaces of screens, doors, window frames or wherever these insects may enter the room. Also treat surfaces around light fixtures on porches, in garages, around shrubbery, and other places where these insects alight or congregate. If a window screen was washed it would need to be reapplied, typically it is applied once a month outside.
Answer last updated on: 01/12/2020
