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<p>This study evaluated the insecticidal potential of natural (More Than and The Base) and synthetic zeolites (3A, 4A,&#xa0;5A) as eco-friendly alternatives to chemical insecticides for controlling the cowpea seed beetle, <i>Callosobruchus maculatus</i> (Coleoptera: Chrysomelidae). Laboratory bioassays were conducted under controlled conditions (27 ± 2 °C, 65 ± 5% RH) using various doses of each zeolite. Synthetic zeolites were applied at 25,&#xa0;50, 75, 100, and 125 mg per 8 g of chickpeas, and natural zeolites at 5,&#xa0;10, 15, and 20 mg. Each treatment included five replicates of 20&#xa0;adult insects, and mortality was assessed over a&#xa0;144-hour period. Among the synthetic zeolites, 3A (125 mg) achieved 100% mortality within 72 h, while 4A and&#xa0;5A reached near-complete mortality (98–97%) by 96–120 h. Natural zeolites caused complete mortality at all doses ≥ 10 mg within 24 h, and even the lowest dose (5 mg) achieved full mortality by 48 h. Mortality increased significantly with both dose and exposure time. In addition, all zeolite treatments suppressed egg hatchability, preventing F<sub>1</sub> generation development. These results demonstrate that both natural and synthetic zeolites are effective against <i>C.&#xa0;maculatus</i> and may serve as sustainable alternatives for managing stored-product pests.</p>

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Insecticidal Activity of Natural and Synthetic Zeolites Against Callosobruchus maculatus (Coleoptera: Chrysomelidae)

  • 期刊论文

  • 发表日期：

    2025年9月11日

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  • Tuğba Sarıçam,
  • Ebru Gül Aslan

摘要

This study evaluated the insecticidal potential of natural (More Than and The Base) and synthetic zeolites (3A, 4A, 5A) as eco-friendly alternatives to chemical insecticides for controlling the cowpea seed beetle, Callosobruchus maculatus (Coleoptera: Chrysomelidae). Laboratory bioassays were conducted under controlled conditions (27 ± 2 °C, 65 ± 5% RH) using various doses of each zeolite. Synthetic zeolites were applied at 25, 50, 75, 100, and 125 mg per 8 g of chickpeas, and natural zeolites at 5, 10, 15, and 20 mg. Each treatment included five replicates of 20 adult insects, and mortality was assessed over a 144-hour period. Among the synthetic zeolites, 3A (125 mg) achieved 100% mortality within 72 h, while 4A and 5A reached near-complete mortality (98–97%) by 96–120 h. Natural zeolites caused complete mortality at all doses ≥ 10 mg within 24 h, and even the lowest dose (5 mg) achieved full mortality by 48 h. Mortality increased significantly with both dose and exposure time. In addition, all zeolite treatments suppressed egg hatchability, preventing F1 generation development. These results demonstrate that both natural and synthetic zeolites are effective against C. maculatus and may serve as sustainable alternatives for managing stored-product pests.