GENERAL KNOWLEDGE

Detailed explanation-1: -corn smut, plant disease caused by the fungus Ustilago maydis, which attacks corn (maize) and teosinte plants. The disease reduces corn yields and can cause economic losses, though in Mexico the immature galls of infected ears of corn are eaten as a delicacy known as huitlacoche.

Detailed explanation-2: -Ustilago is a pathogen on a number of grain crops, the most important of which is maize. It does cause major crop losses of sweet corn.

Detailed explanation-3: -Ustilago esculenta is a species of fungus in the Ustilaginaceae, a family of smut fungi.