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Which one is the wrong pairing for the disease and its causal organism
A. Late blight of potato - Alternaria solani
B. Black rust of wheat - Puccinia graminis
C. Loose smut of wheat - Ustilago nuda
D. Root-knot of vegetables - Meloidogyne sp.

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Correct Answer - A
(a) The causative agent of late blight of potato is fungus Phytophthora infestans, class - Oomycetes, order - Peronosporales, family - Phythiaceae, In India, the late blight of potato is a seed borne disease.

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