Vol. 10, Issue 10 (2021)

Author(s):
VM Gholve, GS Pawar, SN Banne and SP Sornapriya

Abstract:
Bacterial blight caused by Xanthomonas axonopodis pv. malvacearum is one of the most destructive diseases of cotton (Gossypium spp.), causing severe yield losses upto 38.78%. Present investigations on the disease (Xam) were carried out to fulfill the objectives defined, at the Department of Plant Pathology, College of Agriculture, VNMKV, Parbhani. Among the various chemicals and bioagent tested under in vitro condition against Xanthomonas axonopodis pv. malvacearum, streptocycline 100 ppm + copper oxychloride 3000 ppm was significantly superior with maximum inhibition zone of 26.67 mm followed by streptocycline 100 ppm + carbendazim 1500 ppm (26.00 mm), streptocycline 100 ppm + copper hydroxide 3000 ppm (24.30 mm) and minimum inhibition zone was found in Pseudomonas fluorescens 2 X 106 cfu/ml (11.00 mm).