Mississippi Pesticide License Practice Exam 2025 - Free Pesticide License Practice Questions and Study Guide

Verticillium wilt is typically associated with soil, where the fungus that causes this disease, Verticillium spp., resides. The pathogen can persist in the soil for extended periods, often in the form of resting structures called microsclerotia, which can survive in unfavorable conditions. When conditions are right, these spores can infect the roots of susceptible plants, leading to symptoms such as wilting, yellowing leaves, and stunted growth.

While the air can carry spores of various pathogens, Verticillium wilt specifically relies on soilborne spores for infection. Consequently, the disease is more prevalent in soil that has previously hosted infected plants or that has the right environmental conditions, such as moisture and soil pH levels conducive to the fungus. Thus, understanding the soil's role in the life cycle of Verticillium wilt is crucial for effective disease management strategies in agricultural practices.