The species is susceptible to canker and Verticillium wilt when stressed. Fusarium wilt is a common vascular wilt fungal disease, exhibiting symptoms similar to Verticillium wilt. Over 400 plant species are affected by "Verticillium" complex. Verticillium dahliae is a fungal plant pathogen. However, "U. pumila" is the most resistant of all the elms to verticillium wilt. Powdery mildew and verticillium wilt can also cause trouble. Raspberries, blackberries, strawberries, and many other berries are susceptible to verticillium wilt. The signs are similar to most wilts with a few specifics to "Verticillium". The Early Girl VF hybrid is verticillium and fusarium wilt (strain I) resistant. There are many strains of "Verticillium dahliae" which are categorized into vegetative compatibility groups (VCG). "Hemileia vastatrix" has two fungal parasites, "Verticillium haemiliae" and "Verticillium psalliotae". "H. schachtii" is susceptible to infection by "Verticillium suchlasporium" and other fungi. Verticillium albo-atrum is a plant pathogen with many hosts. Verticillium wilt is a wilt disease affecting over 350 species of eudicot plants. It causes verticillium wilt in many plant species, causing leaves to curl and discolor.