Fungicide: Chemical and Organic Options for Fungal Control

Fungicides: Kill or Inhibit Fungi and Spores

Fungicides (0.08–0.5% sulfur liquid; 90% sulfur powder—very toxic) treat fungal diseases: black spot, botrytis (gray mold), crown/stem/root rot, leaf spot, powdery mildew, red blotch. Types: contact (surface only), translaminar (through leaf), systemic (whole plant via xylem).

Homemade Alternative

1–2 tbsp baking soda + 1–2 tsp mineral oil in spray bottle of water; shake, spray all parts.