Tim from Austin, Tx writes
We would recommend that you apply Onslaught FastCap Spider and Scorpion Insecticide. It is mixed at 1 oz per gallon of water and the pint size bottle will treat 16,000 sq ft for a 30 day residual. It also treats over 200+ insects. You can apply it in a backpack sprayer on the siding, crack and crevices on the interior and exterior, garage etc.
Answer last updated on: 10/02/2015