Daniel from Cobb writes
When using Hi-Yield 38-Plus Insect Control 38% Permethrin as a perimeter spray for spiders and other common crawling and flying pests, you can mix 1.6 oz of concentrate per gallon of water. You will apply that around the foundation of the structure, plus places where insects are likely to harbor or travel, such as around window frames, door frames, utilities, and light fixtures. We have more tips in our Spider Control Guide here as well.
Answer last updated on: 09/29/2022
