SEASONAL INCIDENCE AND MANAGEMENT OF BUDWORM, Hendecasis duplifascialis (Hampson) IN Jasminum Sambac L

A field experiment was conducted in Killikulam, Tuticorin, India, during summer season in 2018. The evaporation, sunshine hours and morning relative humidity had positive effect with 0.508*, 0.594* and 0.799**. The mean of evening relative humidity and rainfall had negative effect with -0.559* and -0.774**. A unit increase in the rainfall resulted in a decrease of 3.38 per cent damage. The efficacy of five botanicals and eleven insecticides were evaluate against jasmine bud worm, Hendecasis duplifascialis (Hampson) infesting Jasminum sambac. Chlorantriniliprole 18.5 SC @ 0.1 ml/l, flubendiamide 39.35 SC @ 0.75 ml/l, thiacloprid 21.7 SC @ 0.30 ml/l, dimethoate 30 EC @ 2.0 ml/l and novaluron 10 EC @ 1.00 ml/l recorded lower infestation (6.21, 6.64, 7.64, 7.92 and 13.69 per cent infested buds per five clusters per 10 plants, respectively). Among, the botanicals NSKE @ 5.0 per cent and pungam oil @ 2.0 per cent was superior against budworm followed by pungam oil @ 2.0 per cent with 81.67 and 76.10 per cent reduction, respectively.