Mite Susceptibility

Mite susceptibility refers to a strain's relative vulnerability to spider mites and other phytophagous mites—common cannabis cultivation pests. This trait is polygenic and influenced by leaf surface characteristics, waxy coating density, stomatal structure, and secondary metabolite profiles that either deter or attract mites. Breeders have historically documented wide variation in mite pressure across genetic backgrounds, with some lineages showing markedly higher infestation rates under identical growing conditions. Understanding mite susceptibility is crucial for integrated pest management strategies, particularly in indoor and outdoor production where population explosions can rapidly damage crops. Lineage records frequently report mite susceptibility correlations with specific parent strains, though environmental stress, humidity, and cultural practices also modulate pest pressure si

Breeders working in pest-resilient genetics often select for morphological traits associated with natural mite resistance—such as trichome density, leaf texture, and stomatal patterning—particularly when developing cultivars for organic or low-input systems. Crossing known susceptible and resistant germplasm, combined with repeated selection under mite-pressure environments, enables development of