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<p>Fall armyworm (FAW), <i>Spodoptera frugiperda</i> (J.E. Smith) has emerged as a major pest of maize in India. Field experiments were conducted during <i>rabi</i> seasons of 2020 and 2021 at Goa, to study the impact of habitat manipulation through intercrops on FAW management. There were significant differences in the per cent infestation and live larvae of FAW in all the intercrops treatments compared to control, with lowest damage (12.40%) and live larvae (6.37 numbers per 20 plants) was recorded in fodder maize + cowpea. Significantly higher percent parasitization of FAW eggs by <i>Trichogramma chilonis</i> Ishii and <i>Telenomus remus</i> Nixon was found in fodder maize + groundnut followed by fodder maize + cowpea whereas the mono crop has registered less percent egg parasitization of both the parasitoids. Coccinellid predators and rove beetle was found significantly higher in fodder maize intercropping system than sole crop. Significantly higher green fodder yield of 40.16 t/ha was recorded when fodder maize intercropped with cowpea. The current study demonstrated that habitat manipulation through intercropping reduced the FAW infestation in fodder maize.</p>

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Habitat Manipulation Through Intercropping for the Management of Invasive Fall Armyworm Spodoptera frugiperda in Fodder Maize

  • 期刊论文

  • 发表日期：

    2026年1月2日

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  • R. Maruthadurai,
  • R. Ramesh,
  • Channabasava Veershetty,
  • Parveen Kumar

摘要

Fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith) has emerged as a major pest of maize in India. Field experiments were conducted during rabi seasons of 2020 and 2021 at Goa, to study the impact of habitat manipulation through intercrops on FAW management. There were significant differences in the per cent infestation and live larvae of FAW in all the intercrops treatments compared to control, with lowest damage (12.40%) and live larvae (6.37 numbers per 20 plants) was recorded in fodder maize + cowpea. Significantly higher percent parasitization of FAW eggs by Trichogramma chilonis Ishii and Telenomus remus Nixon was found in fodder maize + groundnut followed by fodder maize + cowpea whereas the mono crop has registered less percent egg parasitization of both the parasitoids. Coccinellid predators and rove beetle was found significantly higher in fodder maize intercropping system than sole crop. Significantly higher green fodder yield of 40.16 t/ha was recorded when fodder maize intercropped with cowpea. The current study demonstrated that habitat manipulation through intercropping reduced the FAW infestation in fodder maize.