Abstract Global health and environmental concerns against synthetic pesticides in stored-grain coupled with high cost, unavailability and inaccessibility of modern non-chemical grain treatment technologies in Africa are driving the need for low-cost and low-dose combination of readily available alternatives. Laboratory studies were conducted to determine the efficacy of non-registered low-dose food grade diatomaceous earths enhanced with natural grain protectants: IBS at 50, 75 and 100 ppm; IPE1 at 200, 300 and 400 ppm; IPE2 at 100, 150 and 200 ppm against Prostephanus truncatus and Sitophilus zeamais adult insects on maize. Adult insect mortality was assessed at 7, 14 and 21 days after treatment (DAT) while progeny emergence was assessed at 49 and 70 DAT for S. zeamais and P. truncatus, respectively. IBS caused significant (p

中文翻译：

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三种增强型硅藻土在储存玉米粒上对抗 Sitophilus zeamais Motschulsky 和 ​​Prostephanus truncantus (Horn) 的潜力

摘要 全球对储存粮食中合成农药的健康和环境问题以及非洲现代非化学粮食处理技术的高成本、不可用性和不可获得性正在推动对低成本和低剂量组合的现成替代品的需求。进行了实验室研究以确定未注册的低剂量食品级硅藻土用天然谷物保护剂增强的功效：IBS 为 50、75 和 100 ppm；IPE1 为 200、300 和 400 ppm；100、150 和 200 ppm 的 IPE2 对抗玉米上的 Prostephanus truncatus 和 Sitophilus zeamais 成虫。在处理 (DAT) 后 7、14 和 21 天评估成虫死亡率，而分别在 49 和 70 DAT 评估 S. zeamais 和 P. truncatus 的后代出现。IBS 引起显着 (p