Management of jasmine root rot caused by Fusarium solani in northern Karnataka

Jasmine root rot was reported for the first time in Jasmine orchard during 2003-04. The incidence ranged from 12-20 per cent. The pathogen was isolated and identified as Fusarium solani (Mart) sacc and pathogenicity was proved upon artificial inoculation. In culture, the fungus produced whitish colony and abundant micro and macro condia with chlamydosposes, Various fungicides were evaluated under laboratory and field conditions. In bioassay studies, benomyl (1000 ppm) carbendazim (2000 ppm), tridemorph (2000 ppm) and propiconozole (1000 ppm) showed 100 per cent inhibition. Application of benomy 1(0.1 %) + copper oxychloride (0.3%) and carbendazim (0.2 %) + copper oxychloride (0.3 %) as drenching twice at 15 days interval was found effective in checking the incidence and spread of the disease.