Soap and water. Take dish soap, like Jewel brand something that isn't anti bacterial, bleach filled whatever. Like the old fashioned green Palmolive, get one of those containers that fits on the end of a hose, like the Miracle Gro plastic containers, pour some soap in there, fill the rest with water, attach it to your hose and spray away. Those bugs are usually caused by evergreen bushes so spray the bushes and the side of your house. They hate soap. It worked for me, good luck! If you don't want to do the whole hose thing, get a spray bottle put the soap in there, fill it with water and hand spray it.