Current Science

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The objective of this study was to determine the optimum height and dose of the indigenously synthesized sex pheromone of citrus leaf miner, Phyllocnistis citrella Stainton for the management of citrus groves under central Indian conditions. The influence of pheromone dose (5 and 8 mg) and trap height (canopy and mid-canopy height) on the capture of P. citrella males was evaluated. The dose of 5 mg of synthetic sex pheromone placed at mid-canopy (1.55 m) height attracted the highest number of P. citrella males (667.15 ± 9.84 adults/trap/week) in <5 year-old Citrus aurantifolia (Christm) Swingle (acid lime) groves of ICAR-CCRI, Nagpur experimental farm. Further evaluation of the pheromone baited traps @ 10, 15 and 20 mg/lure in <5-year-old orchards of acid lime recorded significant maximum trap catch in orchards with 20 mg lure (4 traps/0.3 ha) with mean trap catch/month from 4, 3 and 2 traps/0.3 ha of 1659.76 ± 36.67, 950.19 ± 17.91 and 668.44 ± 8.78 adults in 2014–15 and 1400.17 ± 36.67, 873.64 ± 17.91, 446.91 ± 8.78 adults in 2015–16 respectively.

Keywords

Citrus Groves, Optimum Height and Dose, Phyllocnistis citrella, Sex Pheromone, Semiochemicals.
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