Disease Resistance Botrytis

Botrytis resistance refers to genetic traits that reduce susceptibility to Botrytis cinerea, a fungal pathogen commonly responsible for gray mold in cannabis cultivation. Plants classified under this category typically exhibit structural or biochemical characteristics—such as reduced calyx density, improved air circulation architecture, or natural antifungal terpene expression—that lower infection risk in humid environments. This classification reflects lineage records and breeding work documenting observed resilience under controlled pathogen pressure, rather than immunity. Botrytis resistance is of particular interest to cultivators operating in high-humidity regions or indoor facilities where environmental control is challenging. Breeders working in this category often select parent plants demonstrating consistent mold avoidance across multiple generations and growing conditions.

Breeders integrate botrytis-resistant lineages into programs targeting regions with chronic humidity or to reduce fungicide dependency. Selection for this trait typically involves multi-generational observation under naturally humid or simulated high-moisture conditions, paired with phenotypic markers like open bract structure and vigorous branching.