Greenhouse Pests

Well it's still cold and snowy out, and most days are still Michigan-winter-gray, but with the longer days plants overwintered in the greenhouse are waking up and sending out promising new leaves and shoots. Unfortunately, the pest population is also waking up, and although I try to be SO careful to keep my greenhouse clean and uncontaminated, I guess it's tough to do if you bring outdoor pots indoors. Overnight, I have fungus on some plants and fungus gnats on others. I probably overwatered because I got so excited to see fresh green again. Actually, I also watered late in the day after getting home from work, not giving the pots a chance to dry out during the day but instead staying damp all night in the cool night temps. I know better - I do - but thought I could get away with it a few times. ARGH! Now I have to experiment with the various non-commercial, relatively organic solutions to my problems that I've read about. Hopefully, the next post will contain success stories on this front.