my pump up sprayer is full of 15% bleach solution ATM - happy its not needed for bug controlI agree with the use of Permethrin, I use it 2 ways, 1 in a 32 oz spray bottle so I can stream it for pests like this and in a hand held for bigger jobs. Whatever way you do it, prepare to run, they will bomb you like a fighter pilot, despise those things! Good luck.