Efficacy of different insecticide modules on tomato pin worm, Phthorimaea absoluta
2022
Kumari, D Anitha | Suresh, V. | Anitha, G. | Nayak, M Hanuman | Lavanya, A.V.N. | Mamatha, A.
Tomato pin worm, Phthorimaea absoluta (Meyrick) (Lepidoptera: Gelechiidae) is an invasive pest on tomato and was first reported in India during 2014 and has spread to several tomato growing states. An experiment was conducted to know the efficacy of different modules. The three modules include Integrated module: Installation of pheromone traps (25/ha), collection and destruction of infested parts, spraying of Azadirachtin @3-5ml/L after 30 Days after transplanting, spraying of emamectin benzoate @0.4g/L 10 days after first spray, spraying of chlorantraniliprole @0.3ml/L 10 days after second spray; Bio intensive model: installation of pheromone traps (25/ha), spraying of NSKE5% after appearance of pest, spraying of Pongamia soap @10g/L 10 Days after first spray, spraying of Neem soap @10g/L 10 days after second spray, Spinosad 45 SC @0.3ml/L 10days after third spray, Chemical Module: Spraying of Lamdacyhalothrin @2.5ml/L at 3days after transplanting, followed by spraying of indoxacarb 14.5 SC @ 1ml/L at 10 days after first spray followed by Chlorantraniliprole @ 0.3 ml/L 10 days after second spray and Novaluron 10EC @ 1.5 ml/L at 10 days after third spray and Untreated control. All the modules were significantly superior over control. Among the modules tested chemical module and integrated modules were superior in the management of P.absoluta followed by biointensive module. Live mines in integrated module reduced from 5.08 to1.97 per plant as against increase in live mines from 3.25 to 8.06 per plant in untreated control.
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