Insects that ingest plants treated with neem oil will die, but not immediately. Try the oil if you have an infestation of aphids, mealy bugs, caterpillars, or whiteflies, and be patient while the ...

As aphids can move from plant to plant, it is also important to apply diatomaceous earth to the surrounding indoor plants. Neem oil, also known as Margosa oil, is an oil pressed from the fruit and ...