Invasive Species Compendium

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Abstract

Deterioration in cane quality due to diseases.

Abstract

Disease incidence on 12 commercial sugarcane varieties was investigated in central and western districts of Uttar Pradesh, India. Higher incidence of red rot (caused by Glomerella tucumanensis) occurred in varieties CoJ 64 and Co 1148 than in CoS 767, CoS 802, Co 1158 and CoS 8016. Severe infection of smut (caused by Ustilago scitaminea) occurred in CoS 8016, Co 1158 and UP 5, and wilt (caused by Cephalosporium sacchari and Gibberella fujikuroi) and grassy shoot (caused by Clavibacter xyli) occurred in CoS 8315, CoS 770 and Co 1148. CoS 767 and CoJ 64 were seriously affected by eye spot [Bipolaris sacchari] (25.50%) and brown spot [Cercospora longipes] (32.55%). Low temp. favoured the spread of red rot and grassy shoot, whereas high temp. and low humidity favoured wilt. The percentage loss in commercial cane sugar due to these diseases varied from 0.61 to 3.54 depending on the variety.