Pest Management in Horticultural Ecosystems

Among six insecticides and two botanicals evaluated against two jasmine bud borers, Hendecasis duplifascialis (Hampson) and Elasmopalpus jasminophagus (Hampson) infesting Jasminum multiflorum, at Bengaluru, India, chlorantriniliprole 18.5 SC @ 0.2 ml/l, profenophos 50 EC @ 2 ml/l, quinolphos 25 EC @ 2 ml/l, spinosad 45 SC @ 0.2 ml/l and NSKE @ 5 per cent recorded lower larval population (0.20, 0.06, 0.13 and 0.13 larvae per five clusters per plant) with higher yield (5.8, 6.9, 6.8 and 6.8 tonnes per ha, respectively) and benefit-cost ratio (0.7, 1.2, 1.6 and 2.9), respectively. Neem seed kernel extract (5%) has registered yield of 6.7 tonnes per ha with a cost benefit ratio of 2.2 which can be dependable bio-rational approach in jasmine pest management.