Field Efficacy of Thiophanate Methyl 44.8% + Kasugamycin 2.6% Sc against Major Foliar Diseases of Tomato

Abstract

Tomato (Solanum lycopersicum L.) is the important edible solanaceous plant originated from western South and Central America. Despite botanically being a fruit, it’s generally eaten and preferred like a vegetable. Tomatoes are the major dietary source of the antioxidant lycopene, which has been linked to many health benefits, including reduced risk of heart disease and cancer. Early blight caused by Alternaria solani and powdery mildew caused by Erysiphe orontii and bacterial leaf spot caused by Xanthomonas campestris has become a serious problem for successful cultivation of tomato. Therefore, a field experiment was carried out to know the efficacy of Thiophanate methyl 44.8% + Kasugamycin 2.6% Sc on tomato diseases during 2017-18 and 2018-19, at College of Agriculture, Shivamogga. Experimental results revealed that all the treatments significantly reduced the early blight, bacterial leaf spot and powdery mildew disease severity over untreated control. Among all the treatments Thiophanate methyl 44.8% + Kasugamycin 2.6% SC @ 1250 ml/ha recorded significantly less Per cent Disease Index (PDI) of Early blight (Alternaria solani) (7.78 % and 10.19 %), Bacterial leaf spot (Xanthomonas Original Research Article Narayanaswamy et al.; CJAST, 40(14): 76-86, 2021; Article no.CJAST.61844 77 campestris) ( 3.96 and 1.39 %) and Powdery mildew (Erysiphe orontii) ( 1.67 and 2.50 %) with yield of 340.33 and 333.33 q/ha followed by Thiophanate methyl 44.8% + Kasugamycin 2.6% SC @ 1000 ml/ha.