If you're using something with BT then don't use it on days when the wind will carry it and target your spray directly on the plant that needs it. I have a small bottle of Thuricide in the fridge and I use it when the caterpillars are showing up on the plants (and they usually come in waves, according to the season.) Whether it is a caterpillar of a moth or a butterfly, you don't want it devouring your veggies, but if you only spray your veggies and not everything else, then you'll limit the carnage.
Neem is a good one for some things, but this time if year it fries plants. I killed a tree with it because I didn't realize it has to be used when the temperature is under 90 degrees. I leave that one only for early spring and later fall.
The thing about organic gardening is that, despite the claim of the chemical pushers, there is a LOT of research and as scientists learn more the modify their approach and sometimes things that were once considered good are dropped off the list.