Smother means exactly that. Smother them by cutting off oxygen to the little beasts. I did not mean 'kill by contact'.
But with my Neem oil program, several types of insects are controlled. That's why I took the time to describe my regime in detail.
I haven't seen scale in years and years. No armored scale and no Boisduval scale.
No aphids.
No whiteflies
Plus, I haven't had mites since 2010 in Florida.
No ants.
Still get occasional mealybug but they are gone rather quickly.
