Brooke from Colorado Springs, Co writes
I sprayed 24 hours ago and just checked and found a few still alive. Do I spray again or wait?
Forbid 4F is a residual product that will continue to kill insects up to 45 days after application. If heavy insect populations persist, then you can retreat after 14 to 21 days, if needed. Please remember to give the product time to work and do its job and follow label instructions at all times for use rates and retreatment intervals.
Answer last updated on: 01/28/2018