Botrytis Resistance Structure

Botrytis resistance structure refers to the physical and morphological characteristics of cannabis plants that naturally inhibit or reduce susceptibility to Botrytis cinerea (gray mold). These traits include tighter, more compact bud architecture; reduced internode spacing; improved air circulation within the canopy; and trichome density that may create a hydrophobic barrier. Breeders working in humid or outdoor cultivation environments have long selected for these structural features as part of integrated pest management strategies. Lineage records frequently report that plants with more open, airy bud structures historically showed higher infection rates, prompting systematic selection toward denser phenotypes with better airflow properties. This classification spans both indica-leaning and sativa-leaning genetics, depending on the breeding program's regional focus.

Breeders developing cultivars for humid climates prioritize botrytis-resistant structures, combining them with other environmental adaptations. Selection for tight buds, reduced leaf-to-bud ratios, and vigorous trichome production helps stabilize resistance traits across generations.