PCA Plant Pathogens Exam Questions and
Answers with Verified Solutions | Latest
Updated 2026
Club Root
Class Zygomycetes
Pathogen Rhizopus sp. Disease Soft Rot (strawberry, sugarbeet,
peach and nectarine)
Soft Rot
Class Oomycetes
Pathogen Phytophthora sp. Disease Late Blight of Potatoe
Late Blight of Potato
Late Bight of Tomato
Pathogen Pythium sp. Disease Damping-off
, Damping off (Floriculture and
Ornamental)
Damping off (Cotton)
Damping off (Cucurbits)
Pathogen Bremia sp. Disease Downy Mildew of Lettuce
Downy Mildew of Lettuce
Class Ascomycetes
Pathogen Erysiphe necator Disease Grape Powdery Mildew
Pathogen Taphrina sp. Disease Peach Leaf Curl
Peach Leaf Curl
Pathogen Venturia sp. Disease Apple Scab
Apple Scab
Pathogen Colletotrichum Disease Strawberry Anthracnose
acutatum
Answers with Verified Solutions | Latest
Updated 2026
Club Root
Class Zygomycetes
Pathogen Rhizopus sp. Disease Soft Rot (strawberry, sugarbeet,
peach and nectarine)
Soft Rot
Class Oomycetes
Pathogen Phytophthora sp. Disease Late Blight of Potatoe
Late Blight of Potato
Late Bight of Tomato
Pathogen Pythium sp. Disease Damping-off
, Damping off (Floriculture and
Ornamental)
Damping off (Cotton)
Damping off (Cucurbits)
Pathogen Bremia sp. Disease Downy Mildew of Lettuce
Downy Mildew of Lettuce
Class Ascomycetes
Pathogen Erysiphe necator Disease Grape Powdery Mildew
Pathogen Taphrina sp. Disease Peach Leaf Curl
Peach Leaf Curl
Pathogen Venturia sp. Disease Apple Scab
Apple Scab
Pathogen Colletotrichum Disease Strawberry Anthracnose
acutatum