Dr. Phyto
cannabis grey mold / bud rot
Botrytis cinerea cannabis
Symptoms
Brown-grey rotting at bud base + interior (the diagnostic location — buds look normal externally), grey fuzzy spore masses on rotting bud interior when broken apart, leaf yellowing + wilting around infected buds, characteristic musty smell, infected buds + plant material must be destroyed (not composted).
Plants affected
Treatment
Dr. Phyto builds a dated, step-by-step treatment plan with country-approved products — start a free diagnosis to get yours.
Common questions
- How do I recognise cannabis grey mold / bud rot on hemp / industrial hemp?
- Brown-grey rotting at bud base + interior (the diagnostic location — buds look normal externally), grey fuzzy spore masses on rotting bud interior when broken apart, leaf yellowing + wilting around infected buds, characteristic musty smell, infected buds + plant material must be destroyed (not composted).
- Do I have to report cannabis grey mold / bud rot?
- No. cannabis grey mold / bud rot is not a notifiable organism, so there is nothing to report to an authority. Treat it as a normal garden problem.
- How is cannabis grey mold / bud rot treated?
- Mainly with biological and cultural measures — removing affected material, changing the conditions that favour it, and treating with agents approved in your country. The exact steps and their timing depend on the plant, the season and where you live: Dr. Phyto works them out in a free diagnosis.
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