Emerging Cannabis Dieseases in California
The most critical diseases and viroids of cannabis in California include hop latent viroid, root and crown rots, powdery mildew, bud rots, and post-harvest flower molds. This article aims to help cannabis growers improve their understanding of these diseases and adopt appropriate management practices to limit the introduction, establishment, and spread of the pathogens and reduce the damage they cause to cannabis production in California.
The most significant challenge cannabis and hemp producers face is the management of insect pests and pathogens that attack the roots, leaves, and inflorescences. Using symptomatology and morphological criteria is not enough, and molecular approaches for pathogen identification are currently the most comprehensive way available.