Athosanswered grow question 6 years ago For the bugs, Neem oil with insecticidal soap will do. As for the yellowing, with that much soil there's no need to be feeding, I would bet that it has more to do with over watering. Let the soil get dry before watering again and when you do, give it a cup or 2 of water, no more. Once you get into a healthy water / dry cycle growth will be much better