This time of year, the Asain beetles are trying to get out. Spraying for them now will do no good and most aerosol insecticides really don't work that well on them.
The key is to spray in fall. Use a product containing cypermethrin (sometimes sold under the brand name Viper in concentrate form). It is highly concentrated and works great for keeping the little buggers out in fall when they are trying to get in. Spray around windows, doors, foundations, etc.; basically anywhere you have seen them congregate. I bought my last supply from bug spray dot com.
Ryan
