Which one is the wrong pairing for the disease and its causal organism? (a) Black rust of wheatPuccinia graminis (b) Loose smut of wheatUstilago nuda (c) Root knot of vegetablesMeloidogyne sp. (d) Late blight of potatoAlternaria solani (2009)
Option D Late blight of potato disease is caused by Phytophthora infestans. It is a phycomycetes fungus. Alternaria solani is the causal organism of early blight of potato disease.