Sulla is a biannual forage legume cultivated throughout the Mediterranean Basin. It can be severely damaged by powdery mildew, but there little understanding on its causal species or host range. The taxonomic characterization of Erysiphe mainly based examination chasmothecia morphology, molecular analysis ITS1 and ITS2 sequences. However, description morphology ITS sequences not always availabl...

abstract during a survey for detection of pvs in potato fields in northern khorasan province, some tubers from the plants which have been already marked and showing mosaic, rugosity, undulation on leaf margins, little leaf and slightly vein deepening, were collected in bodjunrd region, also, some tubers from potato fields of mashhad, chenaran, ghoochan, faruj and shirvan regions were randomly c...