Episode 161: The Secret Lives of Pathogens with Dr. Zamir Punja

Key Takeaways for Cultivators

The Week 3 Strategy: Preventive sprays for Botrytis must occur when the flowers are still small and "open." Once the bud swells (Weeks 6+), the pathogen is already locked inside.

Airflow is Everything: Buds act as heat sinks. Use fans 24/7 to cool the internal temperature of the flower, which is significantly higher than your room’s ambient temperature.

Identify Your Mold: If your bud rot looks pink or white rather than grey, it may be Fusarium. This is a systemic issue that requires a different mitigation strategy and poses a mycotoxin risk.

HLVd Survival: In living soil, HLVd may break down much faster than on sterile surfaces because the microbes decompose the host root tissue.

Watch the Silica: Over-applying potassium silicate can cause the plant to excrete white crystals onto the leaves and stems—don't mistake this "silica vomit" for PM or resin!

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