I use nematodes. They are nasty little F@#%ers. Put the pack at least 1 - 1-1/2 inches down in your pot's medium, water lightly so the pack does not float to the top. Once it's activated it will take about 5-7 days and they will start to hunt down the larva and eat them! The adults will start to die of and any larva they left will be eaten! Also throw some yellow stickies in to get rid of the adults a little faster.