; Ranney et al., 1994 ), the fungus Erysiphe (sect . Microsphaera ) pulchra (syn . Microsphaera pulchra ) is now recognized as the cause of annual epidemics in Tennessee ( Klein et al., 1998 ) and throughout the United States ( Li et al., 2009
; Ranney et al., 1994 ), the fungus Erysiphe (sect . Microsphaera ) pulchra (syn . Microsphaera pulchra ) is now recognized as the cause of annual epidemics in Tennessee ( Klein et al., 1998 ) and throughout the United States ( Li et al., 2009