Phytophthora Root Rot
Phytophthora root rot refers to pathogenic infection caused by Phytophthora species (commonly P. cinnamomi and P. capsici), which attack root systems in cannabis cultivation. This oomycete pathogen thrives in warm, wet conditions and causes root decay, wilting, and plant collapse regardless of above-ground health. Infection spreads through contaminated water, soil, and propagation materials, making it a significant concern in indoor hydroponic and outdoor operations. Recognition involves brown, mushy roots and sudden decline despite adequate nutrients. Management focuses on environmental control—drainage, temperature regulation, sanitation—rather than chemical intervention in most jurisdictions.
Phytophthora Root Rot strains
No strains tagged into Phytophthora Root Rot yet — they'll appear here as breeders submit lineage records under this family.
Phytophthora root rot refers to pathogenic infection caused by Phytophthora species (commonly P. cinnamomi and P. capsici), which attack root systems in cannabis cultivation. This oomycete pathogen thrives in warm, wet conditions and causes root decay, wilting, and plant collapse regardless of above-ground health. Infection spreads through contaminated water, soil, and propagation materials, making it a significant concern in indoor hydroponic and outdoor operations. Recognition involves brown, mushy roots and sudden decline despite adequate nutrients. Management focuses on environmental control—drainage, temperature regulation, sanitation—rather than chemical intervention in most jurisdictions.
Cannabis breeders increasingly select for root vigor and disease resistance traits to reduce Phytophthora susceptibility in commercial lines. Genetic diversity studies help identify parent plants showing natural tolerance to waterborne pathogens, informing selection for resilient cultivars.
Educational reference · Cultivar metadata only · No medical claims