Mold, in the context of cannabis, refers to the growth of fungi on cannabis plants or cannabis products. It is a common concern in the cannabis industry and can have various negative effects on the quality and safety of the plant.

Mold growth typically occurs in environments with high humidity levels and poor airflow. Cannabis plants are susceptible to mold infestation during cultivation, especially in indoor growing environments where humidity control can be challenging. Mold can also develop during the post-harvest stages if the drying and curing processes are not properly managed.