If you mean the chemical, Malathion(Bonide). Instant kill and somewhat more selective than other insecticides- wont kill bees etc. as long you dont spray directly on flowering plants. It does not leave a long lasting residual, but the objective is to kill every adult you can NOW and stunt the next cycle. Just be sure it doesn't rain for a few days for best results.
I have a backpack sprayer with a 2-cycle engine. You can use a pump-up garden sprayer if you don't have a lot of vegetation to spray. I am in the woods so I need serious hardware lol.