Welcome to Fungi & Mycology
This category explores the fascinating world of fungi in cannabis cultivation — from beneficial soil organisms to mushroom growing alongside cannabis.
Beneficial Fungi in Cannabis
Mycorrhizae
- Arbuscular mycorrhizal fungi (AMF): Form symbiotic relationships with cannabis roots, extending the root network up to 700x
- Benefits: improved nutrient uptake (especially phosphorus), drought resistance, disease suppression
- Apply at transplant — mix into root zone or use as a root drench
- Brands: Great White, Dynomyco, Mykos
Trichoderma
- Trichoderma harzianum and T. viride colonize the rhizosphere
- Outcompete pathogenic fungi like Fusarium and Pythium
- Produce enzymes that break down organic matter, releasing nutrients
- Apply as soil drench or seed treatment
Mushroom Cultivation
- Companion growing: Oyster mushrooms (Pleurotus) can be grown on cannabis stems and stalks post-harvest
- Shared substrates: Spent mushroom compost is an excellent cannabis soil amendment
- Mycelium networks improve soil structure and water retention
Harmful Fungi to Watch
- Botrytis cinerea (gray mold) — the #1 enemy in flower
- Fusarium oxysporum — causes root rot and wilting
- Aspergillus species — produce harmful mycotoxins
Share your mycology knowledge and experiments here!
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