Botrytis Pressure Tolerance

Botrytis pressure tolerance refers to a cannabis plant's genetic capacity to resist or minimize infection from Botrytis cinerea, a common fungal pathogen that causes gray mold. This trait is particularly relevant in humid growing environments where moisture and air circulation create conditions favoring fungal development. Plants with stronger botrytis tolerance typically exhibit denser trichome production, faster leaf senescence, or genetic resistance mechanisms that limit pathogen colonization. Lineage records frequently report botrytis resilience in strains developed for outdoor or greenhouse cultivation in temperate climates. Breeders working in wet or challenging microclimates actively select parent plants showing reduced disease pressure as a heritable trait. This genetic focus supports crop reliability rather than chemical fungicide dependence.

Breeders select for botrytis tolerance by identifying parent plants and phenotypes that naturally resist or recover from fungal pressure, particularly in outdoor or semi-controlled environments. This trait is cross-bred into commercial lines to reduce crop loss and improve cultivation consistency without relying solely on environmental controls or post-harvest remediation.