| Here's an idea: PRODUCT NAME: Cypermethrin.
PRODUCT DESCRIPTION: A concentrate which mixes with water and may be applied inside or outside of the home. TARGET PESTS: This product has a broad label and will control many pests. It happens to be very active on bees and wasps. WHERE TO USE IT: Although it is labeled for use inside, apply it outside on surfaces where Mason Bees are trying to establishnests. This includes around window frames, door frames, roof
lines, overhangs, soffits, vents, and generally any place where there is wood, stucco, mortar or other substrate they can chew through and create small voids. RATE OF APPLICATION: Mix it at the rate of 1 ounce per gallon and a gallon will cover 1000 sq/ft well. Cypermethrin is available in two forms. The Emulsifiable Concentrate is a liquid form which is easy to mix and use. It dries invisible, has a slight odor, will last up to a month and is generally the choice when spraying a lot inside. The Wettable Powder is white and will leave a slight residue on dark surfaces, has a no odor, will last a week or two longer than the Emulsifiable Concentrate and is generally used outside where the extra length residual is an advantage.
Keep in mind that either form can be used inside or outside.
The wettable powder is able to provide a little longer residual but there is the possibility of a visible residue on dark surfaces. The difference in performance is barely noticeable; either form works great. Cypermethrin Emulsifiable Concentrate. | 
