Eco-friendly control of rice weevil, Sitophilus oryzae L. (Coleoptera, Curculionidae) in grain storage structures using diatomaceous earth admixed insecticides

文献类型： 外文期刊

第一作者： Saeed, Qamar

作者： Saeed, Qamar;Amir, Waqas;Batool, Muazzama;Saeed, Qamar;Chen, Ting;Parvaiz, Fahed;Ahmad, Faheem

作者机构：

关键词： Diatomaceous earth; synergism; deltamethrin; lufenuron; structural treatment

期刊名称：INTERNATIONAL JOURNAL OF PEST MANAGEMENT （ 影响因子：1.766； 五年影响因子：1.513 ）

ISSN： 0967-0874

年卷期：

页码：

收录情况： SCI

摘要： Sitophilus oryzae infestation results in the low nutritional and commercial value of stored grains. Surface treatment of storage structures can effectively kill harbouring weevils. The indiscriminate and frequent application of structural insecticides causes a threat to the environment and human health along with insecticidal resistance development. There is a dire need to discover safe natural compounds for increased efficacy along with prolonged control of S. oryzae. This study proposes a combination of diatomaceous earth with conventional and novel insecticide for environmentally safe pest management. Admixing diatomaceous earth with conventional and novel insecticides resulted a significant increase in their efficacies where their LC50 values decreased at least by >80% and 40%, respectively. The highest synergism was observed (>80% decreased LC50) in DE and deltamethrin mixtures 48 and 72 hours after application. Our findings suggest that diatomaceous earth, being a natural compound and relatively safer for human and livestock health with no persistent toxicity in grains, can provide an environmentally safe option to synergise conventional insecticides for structural and grain treatments.

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