Evaluation of Fungicides and Bio-Agents against Ascochyta Blight (Ascochyta rabiei) of Chickpea under Dryland Conditions of Kashmir, India

Five non-systemic fungicides: chlorothalonil, carbendazim (12%) + mancozeb (63%), captan 50WP, dodine 65WP and copper oxychloride 50WP four systemic fungicides viz., difenoconozole 25EC, hexaconozole 5EC mycobutanil 10WP were evaluated against Aschochyta blight of chickpea caused by Ascochyta rabiei. The in-vitro evaluation through poisoned food technique at five different concentrations: 50,100, 250, 500 1000 µg ml-1 showed that (63%) proved most effective resulted in highest mycelial growth inhibition (82.27%) the pathogen followed with 67.99%. least efficacious fungicide was only 29.81% inhibition. Among concentrations 25, 50, 100, 200 ml-1, to be 90.23% difenconozole (71.24%). Myclobutanil among 52.76% three methods used for efficacy bio-agents, revealed seed treatment lowest disease incidence (15.0%) intensity (4.02%). biological control agents used, seeds treated Bacillus subtilis which 32.25 20.04%, respectively. Combination comprising concentration 109spores foliar spray 63% WP+ carbendazim12%WP 2.5% (7.80%) (4.82%) while 109 spores ml-1alone 53.80% 37.25%. It was, however superior than where 80.00% 51.34 %,