Phylum Ascomycota
Orders Erysiphales & Laboulbeniales
Erysiphales
Common name = Powdery Mildews
Biotrophs of vascular plants
Biotroph: an obligate parasite
growing on another living organism
21 genera, 437 species infecting > 40,000 species of plants (mostly
dicots)
Most species are host specific, a few are omnivorous, infecting hundreds
of host species
Powdery Mildew Symptoms
Characteristics
Asexual reproduction
Conidia
Sexual reproduction
Asci/Ascospores
Identification