Abstract
Laboratory experiment was conducted to test the compatibility of Trichoderma, a potential bio-control agent with commonly recommended fungicides viz; three systemic fungicides carbendazim (50% WP), carboxin (75% WP) and tebuconazole (2% DS) and one contact fungicide copper oxychloride (50% WP) by poison food technique (50,100, 250, 500, 1000 and 1500 ppm). These fungicides were also used to check efficacy against R. solani causing agent of okra damping off. All four potential bioagents showed compatibility with copper oxychloride but Trichoderma sp.-2 also showed highest compatibility as 55.33 per cent inhibition was observed at 1500 ppm followed by Trichoderma sp.-9 in which 64.57 per cent was observed.Carbendazim was found best fungicide as it gave complete inhibition of fungal pathogen even at 250 ppm concentration. Among four fungicides tested in vitro carbendazim was most effective against R. solani but incompatible with bioagents while copper oxychloride was found compatible with bioagents.
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