Vol. 11, Special Issue 7 (2022)

Author(s):
RJ Chaudhari, DS Kelaiya, UM Vyas and SK Parmar

Abstract:
Cotton (Gossypium spp.) is one of the most ancient and important commercial crop next only to food grains and is the principal raw material for a flourishing textile industry. Cotton, although under pressure from synthetic fibers, has made resurgence worldwide and remains as the most improved crop species producing lint plus oil and meal from seed. The major cotton growing districts/area in Gujarat is Kutch, Saurashtra and North Gujarat; however, cotton is grown in almost all the districts of Gujarat. Though cotton is seriously affected by many diseases, leaf blight caused by Alternaria macropora Zimm., is an important destructive disease in all over in Gujarat and other part of country. Experiment was conducted to find out effective fungicides spray schedule for the management of cotton leaf blight. Different spray schedule, 35, 55, 75, 95 and 115 DAS of 0.1% hexaconazole 5% + captan 70% WP, maximum seed cotton yield 2269 kg/ha was recorded in treatment plot of hexaconazole + captan (0.1%) at 55, 75, 95 and 115 DAS with maximum percent disease control (61.10% PDC) and maximum avoidable yield loss (29.44%). Hexaconazole + captan (0.1%) at 55, 75, 95 and 115 DAS proved to be the most effective in controlling the disease in field condition for two seasons with higher yield.