Efficacy of selected chemicals against fruit rot of cucumber [Cucumis sativus (L.)] caused by Fusarium oxysporum f. sp. cucumerinum

Abstract

Cucumber (Cucumis sativus L.) is one of the fore most vegetable grown during Zaid season. Fruit rot caused by Fusarium oxysporum is one of the emerging disease in all regions wherever cucumber is grown. Fusarium oxysporum causes rotting of fruits first in older and mature then to the young fruits during humid temperature. An experiment was conducted to evaluate the efficacy of chemicals viz. T0 (Untreated control), T1 (Neem oil @ 5.0%), T2 (Carbendazim 12% @ 0.3% + Neem oil @ 2.0%), T3 (Captan 70% @ 0.2% + Neem oil @ 2.0%), T4 (Fosetyl-Al @ 0.2% + Neem oil @ 2.0%), T5 (Tebuconazole 50% @ 0.2% + Neem oil @ 2.0%), T6 (Hexaconazole 5% @ 0.2% + Neem Oil @ 2.0%) against fruit rot of cucumber. Studies revealed that maximum height , maximum no. of leaves , maximum no. of branches and maximum no. of fruits and further minimum disease incidence was observed in T3 (Captan 70% @ 0.2% + Neem oil @ 2.0%) and the maximum yield and cost benefit ratio was found in T3 (Captan 70% @ 0.2% + Neem oil @ 2.0%). Hereby it is considered as the best treatment.