Question

Causal agent of red rot of sugarcane is
A. Helminthosporium
B. Fusarium
C. Pythium
D. Colletotrichum

Answer 1

Hint: Red rot (imperative in Indonesia and South Asia) is characterized by hindered ruddy and white patches inside the cane in conjunction with an acrid alcoholic scent when the cane is partially open. Ruddy decay begins to begin withdraws in consideration by a yellowing and wilting of the leaf, and inevitably the whole plant dies.

Complete answer:
Silver scurf is a plant illness that is caused by the plant pathogen Helminthosporium solani. Silver scurf could be an imperfection infection, meaning the impact it has on tubers is, for the most part, restorative and influences “fresh advertise, handling and seed tuber potatoes. Fusarium species, in specific, Fusarium solani, are common causes of keratitis. They are moreover common causes of onychomycosis, endophthalmitis, and skin and musculoskeletal contaminations. The spread frame of disease most commonly happens in patients with intense leukemia and drawn out neutropenia. Pythium ultimum and Pythium irregulare can contaminate horse feed seeds, causing seed scourge or decay (pre-emergence damping off), or they can cause water dowsing and possible passing of the roots and stems of seedlings as they rise (post-emergence damping off).
Red rot could be an exceptionally genuine malady of sugarcane. The surest indicator of the infection is the blushing of the inner internodal tissues with crossbars of white patches within the blushed range. This ruddy colour is caused by a colour which is emitted by the have and is opposing to the ruddy spoil organism. Red rot of sugarcane is caused by Colletotrichum falcatum. The modern title for the same fungus is Glomerella tucumanensis. It produces acervuli which cause profuse sporulation.

Hence, the correct answer is option (D).

Note: Red rot could be a debasement handle found in vegetable-tanned calfskin. Red rot is caused by environmental pollution, high relative humidity and high temperature. In specific, red rot happens at pH values of 4.2 to 4.5.