Impact of integrated pest management modules on natural enemies of whiteflies, Bemisia tabaci (Genn.) in bitter gourd ecosystem


Affiliations

  • ICAR-Indian Institute of Horticultural Research, Division of Entomology and Nematology, Bengaluru, Karnataka, 560089, India
  • Gandhigram Rural Institute- Deemed University, School of Agriculture and Animal Science, Dindigul, Tamil Nadu, India
  • ICAR- Indian Institute of Horticultural Research, Division of Entomology and Nematology, Bengaluru, Karnataka, India

Abstract

The impact of eight IPM modules on whitefly Bemisia tabaci and its natural enemies were recorded during kharif 2016 and 2017, rabi-summer 2016-17 and 2017-18. There was a significant difference among the modules in the number of natural enemies per plant. In general, it was found that during rabi-summer the population of B. tabaci was higher than the kharif season on bitter gourd. When modules were compared for the population of B. tabaci, module 1 to 4 (sowing maize as a barrier crop, removal of infested leaves and residues from the appearance of pests, erection of solar light trap with yellow pan @ 5 traps/ha for trapping, tying yellow sticky trap to attract whiteflies, spraying neem oil @ 1% and pongam oil @1%) and module 6 (spraying of Metarhizium anisopliae (2 x 109), Beauveria bassiana (2 x 108), Neem oil 1% and Pongam oil 1%) which do not include frequent insecticidal applications recorded higher number of coccinellids, syrphids, hymenopterans and spiders than the IPM modules where frequent applications of chemical insecticides were included as a treatment.

Keywords

IPM modules, natural enemies, whiteflies

Subject Discipline

Agricultural Entomology

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References

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