Laboratory experiment was conducted to study the test of compatibility with systemic, non-systemic / contact, combi-fungicides at 50%, 75%, 100% and 125% of the Reommended doses were evaluated in vitro against B. japonicum i.e. Bj-9 (effective isolate out of 25 isolates) of soybean, by inhibition zone technique. The fungicides carbendazim 50% WP and mancozeb 75% WP at all four dosages were found compatible with B. japonicum, as they didn't showed any zone of inhibition, at 72 hrs of incubation.

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... Whereas, rest of the three fungicides viz., captan 75% WP, carboxin 75% WP, vitavax power 75% WP tested at four various concentrations were found inhibited by the test bacterium and produced average inhibition zone of around 00.00-19.66 mm, 8.56mm and 10.52mm respectively, at 72 hrs of incubation.