A) Alternaria solani
B) Phytophthora infestans
C) Phytophthora solani
D) Albugo Candida.
Correct Answer: B
Solution :
: Late blight of potato is caused by Phytophthora infestans which belongs to phycomycetes. The pathogen attacks the leaves causing irregular water soaked brown spots usually on the margin or the apex of leaves and ultimately the whole leaf gets blighted. Finally tubers are invaded and cause a dry or wet rot.
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