Management of Amrasca biguttula biguttula (Ishida) on okra, Abelmoschus esculentus (L.) Monech
2012
Iqbal, J. (University of Agriculture, Faisalabad (Pakistan). Dept. of Agricultural Entomology) | Sagheer, M. (University of Agriculture, Faisalabad (Pakistan). Dept. of Agricultural Entomology) | Mansoor-ul-Hasan (University of Agriculture, Faisalabad (Pakistan). Dept. of Agricultural Entomology) | Nadeem, M. (Gomal Univ., D.I. Khan (Pakistan). Dept. of Entomology)
Various control practices, viz., host plant resistance, release of Chrysoperla spp., seed-treatment with imidacloprid, use of yellow sticky trap, neem seed kernel extract, spray of imidacloprid were applied singly, and in their possible combinations, at three localities, on a comparatively jassid resistant genotype of okra, Punjab Selection for the control of jassid. The treatment effect, alone, and in their possible combinations, showed a significant difference with one another, regarding their effectiveness. A combination of treatments, viz., seed treatment, spray with imidacloprid and installation of yellow sticky traps, was found the most effective and resulted in a minimum population of jassid, per leaf, on okra; whereas, the effect of seed-treatment and installation of yellow sticky traps, alone, did not show distinctive effect on the pest population. A significant decrease in the jassid-population was observed in those plots, where imidacloprid was sprayed, alone, or in combination with other treatments. The seeds treated with imidacloprid, remained effective against the jassids up to 38 days, after sowing. The combination of seed-treatment + spray of imidacloprid + installation of yellow sticky traps, showed a maximum yield of okra.
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