Can you help with the use of Neem Oil in controlling mealy bugs? Is the oil just a leaf polish or does it have insect killing uses also? I mixed one quart water with 1 and 1/2 tsp. oil and 1/2 tsp. liquid soap. Sprayed over and under leaves. Don't have a big infestation but it is annoying. My collection is little of this, little of that. Thanks.