powdery mildew on houseplants

Understand the microclimates that trigger powdery white coatings and fuzzy grey rot, and master proven botanical protocols to eliminate fungal spores without damaging delicate foliage. The Winter Glass Cabinet Epidemic Two winters ago, I built a converted glass cabinet to house my sensitive tropical collection, including velvet-leaf Begonias, rare Philodendrons, and juvenile Calatheas. I installed…