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<p>The fall armyworm (<i>Spodoptera frugiperda</i>), a highly destructive pest of maize causing substantial yield losses in sub-Saharan Africa. Dependence on synthetic insecticides is not only costly for smallholder farmers but also contributes to health hazards, environmental contamination, and resistance development. This study assessed the performance of a recently developed Vegetable-Integrated Push–Pull Technology (VIPPT) as a sustainable alternative for fall armyworm management. VIPPT combined maize with either cabbage (<i>Brassica oleracea</i> var. <i>capitata</i>), onion (<i>Allium cepa</i>), or coriander (<i>Coriandrum sativum</i>) within a randomized complete block design across two seasons. Five treatments (three vegetable-PPTs, standard PPT, and maize monocrop) were evaluated for pest infestation, crop yield, and beneficial insect diversity. Fall armyworm infestations were significantly lower in vegetable-integrated PPT plots, with cabbage-PPT recording the lowest infestation levels of 1.72 ± 0.14 in trial 1 and 1.05 ± 0.11 in trial 2, compared to the monocrop, which recorded 3.64 ± 0.35 and 2.74 ± 0.20 larvae per six tagged plants in trials 1 and 2, respectively. Cabbage-PPT also achieved the highest maize yields with an average of 2,996 ± 409&#xa0;kg/ha in trial1 and 4,823 ± 405&#xa0;kg/ha in trial 2, whereas, the control plots consistently recorded the lowest yields, averaging 985 ± 52.93&#xa0;kg/ha in trial 1 and 1,536 ± 105&#xa0;kg/ha in trial 2. Moreover, onion-PPT supported the greatest insect diversity (Shannon diversity index = 0.862). These findings highlight the potential of VIPPT as an ecologically sustainable and effective strategy for fall armyworm suppression and biodiversity enhancement in maize agroecosystems.</p>

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Vegetable integrated Push–Pull technology: implications for fall armyworm management

  • 期刊论文

  • 发表日期：

    2026年4月18日

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  • John K. Muturi,
  • David K. Mfuti,
  • Carolyne A. Omukoko,
  • Thomas Dubois,
  • Takemore Chagomoka,
  • Frank Chidawanyika,
  • Amanuel Tamiru,
  • Sevgan Subramanian,
  • Saliou Niassy

摘要

The fall armyworm (Spodoptera frugiperda), a highly destructive pest of maize causing substantial yield losses in sub-Saharan Africa. Dependence on synthetic insecticides is not only costly for smallholder farmers but also contributes to health hazards, environmental contamination, and resistance development. This study assessed the performance of a recently developed Vegetable-Integrated Push–Pull Technology (VIPPT) as a sustainable alternative for fall armyworm management. VIPPT combined maize with either cabbage (Brassica oleracea var. capitata), onion (Allium cepa), or coriander (Coriandrum sativum) within a randomized complete block design across two seasons. Five treatments (three vegetable-PPTs, standard PPT, and maize monocrop) were evaluated for pest infestation, crop yield, and beneficial insect diversity. Fall armyworm infestations were significantly lower in vegetable-integrated PPT plots, with cabbage-PPT recording the lowest infestation levels of 1.72 ± 0.14 in trial 1 and 1.05 ± 0.11 in trial 2, compared to the monocrop, which recorded 3.64 ± 0.35 and 2.74 ± 0.20 larvae per six tagged plants in trials 1 and 2, respectively. Cabbage-PPT also achieved the highest maize yields with an average of 2,996 ± 409 kg/ha in trial1 and 4,823 ± 405 kg/ha in trial 2, whereas, the control plots consistently recorded the lowest yields, averaging 985 ± 52.93 kg/ha in trial 1 and 1,536 ± 105 kg/ha in trial 2. Moreover, onion-PPT supported the greatest insect diversity (Shannon diversity index = 0.862). These findings highlight the potential of VIPPT as an ecologically sustainable and effective strategy for fall armyworm suppression and biodiversity enhancement in maize agroecosystems.