A) bacteria
B) ascomycetes
C) basidiomycetes
D) phycomycetes
Correct Answer: B
Solution :
Mildews diseases are caused by a group of fungal parasites called ascomycetes. It is of two types (i) powdery mildews (ii) downy mildews. Powdery mildews are caused by external parasites which grow superficially on the leaves, green stems and fruits and form powdery or dusty patches which are filled with white chonidia. Downy mildews are caused by internal obligate parasites which are characterised by downy growth.
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