数字农科院2.0

Impact of Silicon-Based Treatments On the Demographic Traits of Spodoptera frugiperda in Maize

文献类型： 外文期刊

作者： Muhammad Adeel Ghafar;Qin Feng;Inzamam Ul Haq;Moazam Hyder;Muhammad Sufian;Dilawar Abbas;Kamran Haider;Muhammad Lubaid Khalid;Muhammad Rahan Akhtar;Liande Wang;Rashid Iqbal;Noorah AlKubaisi;Mohamed S. Elshikh

作者机构：

关键词： Fall armyworm;Life table analysis;Maize;Pest control;Silicon treatments

期刊名称： Journal of Crop Health

ISSN： 2948-264X

年卷期： 2025 年 77 卷 4 期

页码：

收录情况： SCIE（2025版）

摘要： The fall armyworm (Spodoptera frugiperda (J.E. Smith)) poses a significant threat to maize (Zea mays L.) production globally, necessitating sustainable pest management strategies to reduce reliance on chemical pesticides. Silicon-based treatments have emerged as a promising alternative, enhancing plant structural and biochemical defenses. However, the efficacy of these treatments in managing fall armyworm populations remains underexplored. This study aimed to evaluate the effects of three silicon compounds silicon dioxide (SiO2), sodium silicate (Na2SiO3), and potassium silicate (K2SiO3) applied via soil drenching and foliar spray on fall armyworm survival, development, and reproduction. Laboratory experiments revealed that silicon treatments significantly reduced survival rates, with SiO2 soil drenching decreasing survival to 0.2 at the pupal stage compared to 0.4 in the control group. Fecundity was also markedly suppressed, with egg production reduced from 210.85 ± 4.61 eggs per female in the control group to 153.73 ± 4.71 eggs per female in the SiO2 soil-drenched group. Developmental durations were prolonged, with the pre-adult stage extended from 28.54 ± 0.22 days in controls to 34.10 ± 0.22 days in SiO2-treated groups. Additionally, intrinsic rates of increase (r) dropped from 0.124 ± 0.005 in controls to 0.08 ± 0.007 in SiO2-treated populations, indicating suppressed population growth. These findings demonstrate the potential of silicon-based treatments as an effective component of integrated pest management (IPM) programs. Further research under field conditions is recommended to validate these results and optimize application methods. Silicon-based approaches offer a sustainable pathway for reducing pest damage while minimizing environmental impact.

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