Pathogen Detection

Pathogen Detection refers to laboratory testing protocols that identify microbial contamination in cannabis plant material, including bacteria, fungi, and molds. These assays screen for pathogens such as E. coli, Salmonella, Aspergillus, and Botrytis—organisms that may proliferate during cultivation or post-harvest handling. Pathogen detection is a standard compliance requirement in regulated markets and informs cultivation best practices regarding environmental controls, sanitation, and storage conditions. Breeders and cultivators use pathogen screening data to understand which phenotypes, growing substrates, or environmental conditions correlate with higher contamination risk. This classification supports genetic line selection by identifying strains or populations with demonstrated resistance to specific pathogenic pressures.

Breeders working in environments with persistent pathogenic pressure—particularly Botrytis or powdery mildew—prioritize phenotypes showing lower contamination rates in field trials. Long-term breeding programs often track pathogen-detection results across generations to select for plant architecture, leaf density, and microbial-ecology characteristics that naturally discourage pathogenic colonizat