Cindy from Kalama, Wa. writes
The outside of the house is covered in boxelders bugs. Does this product leave stains on house paint, and will it damage plants?
Martins Permethrin 10% is not labeled for boxelder bugs so would not be recommended. While it might kill them, the manufacturer either has not tested it against them or did and found it to not be very effective. A better recommendation would be to use the stronger Permethrin SFR which lists boxelder bugs on the label. It will not stain and is safe when used as directed on and around ornamental plants, do not apply during the heat of the day to avoid burning. You would use 1 2/3 fl oz per gallon of water and thoroughly spray tree trunks (if found on), building siding or wherever pests congregate, but not to the point of runoff.
Answer last updated on: 04/03/2017
