BigBearNTexas
Well-Known Member
nIt's called Natria Pyrsol It says on them to preferably spray during night with no lights on, it suppose to have better affect then. Is it because the bugs are more active then or is it the lights drying the chemicals?
A lot of times it’s to keep the leaves from burning in the light. Spraying at lights out allows the chemical to dry before the lights come back on. It’s a common instruction when spraying outdoor plants like roses as well.