Management of wilt disease (Sclerotium rolfsii Sacc.) in jasmine with fungicides

Sclerotial wilt of jasmine incited by Sclerotium rolfsii Sacc.is a serious problem in jasmine growing districts of TamilNadu and caused complete destruction the plant. Uses of fungicides are one the most promising management method in controlling the S. rolfsii infection. Hence the present study was conducted with combination of fungicide molecules to manage the disease. Among the tested fungicides, Tebuconazole 50% + Trifloxystrobin 25 % @ 1000 ppm was found effective and recorded maximum percent inhibition of 95.3 percent followed by Azoxystrobin 11% + Tebuconazole 18.3% at 1000ppm which recorded 94.11% as compared to control under invitro conditions. The pooled mean field data revealed that among the five treatments tested against wilt disease, soil drenching with Tebuconazole 50% + Trifloxystrobin 25 % at 0.1% at the time of planting + soil application on 30, 60, 90 and 120 days after planting was effective in reducing the wilt incidence to 14.0% with the highest yield of 1312 g/ plant with an estimated yield of 8.4 t/ha with maximum CB ratio of 3.63 as compared to untreated control which recorded 32 %,525 g/ plant , 3.36 t/ha and CB ratio of 1.48 respectively.