use booze lol the sweetest most sugary liqure u got i got special traps for it but u could prolly just put some in a bowl they fly in get drunk n drown over n over n over it got rid of the millions of wasps and aphids on my back porch they loved the strawberry shnaps i used in a few days they were all dead seems kinda cruel usin booze to kill little creatures lol but it works n i dont think it can harm ur plants it didnt seem to do nethin to mine