Texas Root Rot(redirected from Phymatotrichum omnivorum)
Texas Root Rot
(also cotton root rot), a very dangerous plant disease caused by the imperfect soil fungus Ozonium om-nivorum; it is an object of quarantine. The disease attacks and destroys the root systems of more than 2,000 species of plants. The leaves turn yellow, wilt, and quickly shrivel. Texas root rot is common in the United States and Mexico, where it seriously damages cotton, alfalfa, fruit trees, and ornamentals. The causative agent of Texas root rot is spread by soil particles, planting materials (tubers, roots, bulbs), and packing materials. The method of control is quarantine.