Scholarlink

Background <p>The Fall armyworm, originally indigenous to the tropical and subtropical regions of the Americas, causing significant reductions in maize productivity. This study evaluated the bio-efficacy of seed and leaf extracts of <i>Azadirachta indica</i> (neem) and <i>Jatropha curcas</i> (physic nut) against Fall armyworm infestation under field conditions. The experiment was arranged in a randomized complete block design with five treatments. <i>A. indica</i> seed extract (SEAI), <i>A. indica</i> leaf extract (LEAI), <i>J. curcas</i> seed extract (SEJC), <i>J. curcas</i> leaf extract (LEJC) and an untreated control. The treatments were applied at a concentration of 150&#xa0;g/L and replicated three times. Data were collected on larval populations, percentage infestation, leaf damage and grain yield.</p> Results <p>Results showed that, SEAI significantly reduced FAW larval population to 0.67 larvae per 10 maize plants after the third spray and recorded the lowest maize damage (10.0%,), in comparison, with untreated control plots (66.7%). The maize plots treated with seed extract of A. indica exhibited the lowest leaf damage score of 1.33. Grain yield was significantly enhanced by botanical treatments with SEAI producing the highest yield (2781.73 kg/ha), followed by SEJC (2581.73kg/ha), LEAI (2541.67 kg/ha), and LEJC (2180.20 kg/ha) while untreated control yielded 1666.10 kg/ha.</p> Conclusion <p>This suggests that A. indica and J. curcas extracts may serve as alternatives for synthetic insecticides for the management of Fall armyworm to enhance maize yields.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Bio-efficacy of seed and leaf extracts of Azadirachta indica (neem) and Jatropha curcas (physic nut) against Spodoptera frugiperda (Fall armyworm) infestation in maize fields

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月25日

查看全文
  • Mayaki Alhaji Cece,
  • Israel Kayode Olayemi,
  • Muhammadu Tajudeen Salaudeen,
  • Azubuike Christian Ukubuiwe,
  • Ibrahim Maikudi Salihu

摘要

Background

The Fall armyworm, originally indigenous to the tropical and subtropical regions of the Americas, causing significant reductions in maize productivity. This study evaluated the bio-efficacy of seed and leaf extracts of Azadirachta indica (neem) and Jatropha curcas (physic nut) against Fall armyworm infestation under field conditions. The experiment was arranged in a randomized complete block design with five treatments. A. indica seed extract (SEAI), A. indica leaf extract (LEAI), J. curcas seed extract (SEJC), J. curcas leaf extract (LEJC) and an untreated control. The treatments were applied at a concentration of 150 g/L and replicated three times. Data were collected on larval populations, percentage infestation, leaf damage and grain yield.

Results

Results showed that, SEAI significantly reduced FAW larval population to 0.67 larvae per 10 maize plants after the third spray and recorded the lowest maize damage (10.0%,), in comparison, with untreated control plots (66.7%). The maize plots treated with seed extract of A. indica exhibited the lowest leaf damage score of 1.33. Grain yield was significantly enhanced by botanical treatments with SEAI producing the highest yield (2781.73 kg/ha), followed by SEJC (2581.73kg/ha), LEAI (2541.67 kg/ha), and LEJC (2180.20 kg/ha) while untreated control yielded 1666.10 kg/ha.

Conclusion

This suggests that A. indica and J. curcas extracts may serve as alternatives for synthetic insecticides for the management of Fall armyworm to enhance maize yields.