Recurrence of Pokkah boeng disease in Uttar Pradesh and its management

摘要

While surveying the sugarcane crop for diseases at Gorakhpur and Seorahi (Eastern U.P., India) in 1993-94, the varieties Co 1158, Co S 767, Co S 8315 and Co S 8436 were found severely stunted with wilting and knife-cut symptoms under field conditionsin July-August. The associated fungi were isolated and identified as Fusarium moniliforme and F. subglutinans causing the Pokkah boeng disease. Commercial fungicides, viz., bavistin, blitox-50, topsin-M and dithane M-45 were tried to manage this disease.Two combined sprays of 0.1% bavstin and 0.3% btitox-50 at fortnightly intervals resulted in the maximum control of the disease. The symptoms of pokkah boeng disease again appeared in sugarcane varieties Co S 767, Co S 91269, UP 9856, UP 9862, CoLK 8001,Grl 146/94, 198/94 and 238/94 at Gorakhpur during July-August 1997. This recurrence of the disease poses a serious threat to sugarcane cultivation, and hence further investigations and sincere attempts to manage the disease are considered necessary.