Dorothy from Pittsburgh, Pa. writes
I know I have to look for and remove sources of moisture. I have sprayed 3x today and each time I look they seem to have come back. I just want to make a dent in their population numbers for now. Does it take a while for the BifenIT to work?
We only recommend applying Bifen IT as labeled, which would be once every 30-60days. Over application could cause the insects to become irritated and rapidly reproduce. Bifen IT will kill with in a matter of minutes.
Answer last updated on: 07/05/2013