Hemp Russet Mites? (Bronze Leaf Plague)
Russet mites are microscopic and cause leaves to bronze, curl, and become brittle. Devastating if not caught early.
Hemp russet mites? Bronze brittle leaves—see causes and analyze fast.
Common Causes
- Brought in on clones
- Warm dry conditions
- No inspection protocol
How to Tell Which One You Have
Leaves turn bronze/tan, curl upward, become brittle. Petioles turn red/purple. Mites invisible without magnification.
FAQ
How to see them?
Need 60x+ magnifier. Look like tiny rice grains on stems/petioles.
Treatment?
Sulfur, predatory mites, or miticide. Repeat treatments essential.
Spread fast?
Extremely fast. Can destroy crop in 2-3 weeks if untreated.