PATHOGEN management for CANNABIS

Plant disease management rely on anticipating occurrence of disease and attacking vulnerable points in the disease cycle (i.e., weak links in the infection chain). Therefore, correct diagnosis of a disease is necessary to identify the pathogen, which is the real target of any disease management program. A thorough understanding of the disease cycle, including climatic, biological and other environmental factors that influence the cycle, and cultural requirements of the host plant, are essential to effective management of any disease.

Pathogen management of cannabis relies more heavily on preventative measures.  Preventing overwatering and overfeeding, keeping the humidity levels controlled and proper biological balances will go a long way in preventing outbreaks.


Anthracnose - Aspergillus - Bacterial Blight - Black Mildew - Brown Blight -Brown Fleck Disease - Brown Leaf Spot - Charcoal Rot - Crown Gall - Damping Off -Downy Mildew - Fusarium Wilt - Gray Mold-  Hemp Mosaic Virus - Hemp Streak Virus -Leaf Rust Fungus - Olive Leaf Spot - Pepper Spot - Pink Spot - Powdery Mildew - Pythium - Root Rot - Stalk Cankers - Twig Blight - Verticillium Wilt - White Leaf Spot


we will update this database as our research center grows. If you have a question regarding a pathogen that is not listed please direct it to the forum

Pesticide Alerts

We make every attempt to have provided accurate lists of approved organic pesticides, but sometimes our database does need updating based on flagged pesticides. If you would like to see something changed please contact us with the form on the right. Please visit our pesticide alerts page for more info.

Selected References

Plant Disease Diagnosis
Melissa B. Riley1, Margaret R. Williamson1, and Otis Maloy2
1Department of Plant Pathology and Physiology, Clemson University, Clemson, SC
2Department of Plant Pathology, Washington State University, Pullman, WA

Biological Control of Plant Pathogens
Pal, K. K. and B. McSpadden Gardener, 2006. Biological Control of Plant Pathogens The Plant Health Instructor. DOI: 10.1094/PHI-A-2006-1117-02.
Updated 2011