Powdery Mildew Susceptibility

Powdery mildew susceptibility is not a terpene, but rather a pathogenic vulnerability trait observed across certain cannabis cultivars and lineages. Some genetic backgrounds—often those selected for aroma or yield rather than disease resistance—show increased susceptibility to powdery mildew (Podosphaera species) fungal infection. Breeders and cultivators document this trait as part of horticultural risk profiling, since susceptible plants require stricter environmental controls and fungicide protocols. Understanding which strain families carry this vulnerability is essential for indoor and outdoor cultivation planning.

Breeders working to improve disease resistance often cross susceptible but desirable cultivars with resistant genetics to isolate resilience traits while preserving preferred aromas and structure. Tracking powdery mildew susceptibility within pedigrees helps guide selection away from problematic lineages in humid or high-pressure growing environments.