All Pest and Pathogen Agent Concepts

Concepts naming the kinds of living things and particles that damage crops and livestock, including bacteria, fungi, insects, mites, nematodes, parasites, prions and viruses. Each concept describes the kind of agent itself, what it is and how it harms a plant or an animal, so that the many named pests and diseases elsewhere in this atlas can point to the kind of agent behind them. Belongs here: any concept that sorts a pest or disease by the type of organism or particle that causes it. Does not belong here: a named pest or disease itself, which has its own pest and disease entry.