Host range and efficacy of agrochemicals, botanicals and bacilli against cowpea blight bacterium Xanthomonas axonopodis pv. vignicola Gena Mukesh, Shah Rakesh, Mali B.L. Department of Plant Pathology, Rajasthan College of Agriculture, MPUAT, Udaipur-313001, (Raj.). Abstract Cowpea is an important pulse crop suffers from several diseases caused by fungi, bacteria and viruses. Bacterial blight of cowpea caused by Xanthomonas axonopodis pv. vignicola is an important disease of Rajasthan. Various disease symptoms were observed on all above ground parts of cowpea. Leaf blight phase was very common. Out of fifty three different plants tested, bacterium could produce visible symptoms on french and field beans apart from cowpea. Efficacy of ten agrochemicals fifty botanicals and three bacilli against the growth of bacterium in vitro studied. All antibiotics were found superior over fungicides. Labistryn found best followed by Streptocydine, Plantomycin, Erocin-250 and Blitox-50. Ornamentals (mehandi, marigold and kaner), weeds (datura, lat jeera and jarayan), medicinals (tulsi, laxamana and mulatto), spices (onion, garlic and turmeric), perennials (neem, vilyati babool and babool) plant parts extracts exhibited better inhibition against the growth of bacterium. Bacillus subtilis proved best followed by B. megatherium and B. cereus against the growth of bacterium. Top Key words Xanthomonas axonopodis pv. vignicola, cowpea blight disease, host range, plant extracts, Bacillus. Top |