Would air circulation help prevent powdery mildew?
It occurred to me that maybe I've been getting powdery mildew outbreaks during the winter because of a lack of air circulation... does this sound right? Does anyone run a fan where they grow their AVs? I'm getting tired of losing plants during the winter, or trying to coddle plants to pick up once it's spring. The reason I have this theory is that the worst offenders are always on the middle shelf. I have two white mesh stacking shelves, locked together to make three tiers, and the middle part of this is where I grow semiminis. All of the ones I grew on that shelf succumbed to powdery mildew, and spraying Lysol helped temporarily but they'd just get it again. The other parts of the shelves are fine. I decided to run a fan on low speed now, and hopefully that will help, but I was wondering what others think of this plan? It would be great to get my plants to live longer than a year, it's disheartening to get plants mature enough to bloom only to lose them within 6 months. Luckily I started leaves of all of them this past summer/fall, and the babies are pretty big now. Also happily, the plants on the other parts of the shelves are doing well. Just gotta get those semiminis to stick around.