Made from the extract of the neem tree this is a highly effective control agent for almost all of the bugs listed above. It is only available as a concentrate, is registered organic and is safe for use a day before harvest. Effective against fungus gnats (the best for these), whitefly, aphids and mites. Neem is expensive but safe and effective. It works both on contact with the body of the pest but also as they ingest it so is more effective that some other sprays.