Whip smut disease of sugarcane is caused by –

Correct option is D

Correct option (d) Ustilago scitaminea
· Causes whip smut disease of sugarcane.
· Produces black whip-like sori from the growing point.
· Seed-borne and systemic fungus.
Other options:
· (a) U. hordei – Covered smut of barley.
· (b) U. nuda – Loose smut of barley.
· (c) U. maydis – Corn smut.