INSECTICIDAL ACTIVITY OF BIO-SILVER AND GOLD NANOPARTICLES AGAINST PERICALLIA RICINI FAB.(LEPIDAPTERA: ARCHIDAE)

Q3 Agricultural and Biological Sciences journal of biopesticides Pub Date : 2016-06-01 DOI:10.57182/jbiopestic.9.1.63-72

K. Sahayaraj, M. Madasamy, S. Anbu Radhika

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引用次数: 25

Abstract

A laboratory experiment was conducted to evaluate the impact of silver aqueous solution, gold aqueous solution, pungamoil, pungamoil-based silver nanoparticles (PO-AgNPs) and pungamoil-based gold nanoparticles (PO-AuNPs), vijayneem against Pericallia ricini larval mortality, development and fecundity and gravimetric analyses. The results showed that Ag+ aqueous solution as well as pungamoil-based gold nanoparticles caused more mortality than commercial neem insecticide (vijayneem). Aqueous solutions of Ag+ and Au+ drastically reduced the body weight of P. ricini larvae. PO-AgNPs and POAuNPs treatment drastically enhanced the food consumption, assimilation but reduced the conversion, subsequently affecting growth. Distinct difference was noticed between PO-AgNPs and PO-AuNPs treatments in larval, pupal and adult developmental periods, fecundity and hatchability. It is recommended to integrate PO-AgNPs and PO-AuNPs in pest management; however, field evaluations and bio-safety assessments were imperative before the utilization of these bio-nanoparticles were recommended.

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生物银和金纳米颗粒对蓖麻周藻的杀虫活性研究。(LEPIDAPTERA: ARCHIDAE)

通过室内实验，评价了银水溶液、金水溶液、旁加酚油、旁加酚油基银纳米粒子(PO-AgNPs)和旁加酚油基金纳米粒子(PO-AuNPs)、维杰尼姆对蓖麻周甲幼虫死亡率、发育和繁殖能力的影响，并进行了重量分析。结果表明，Ag+水溶液和以邦加酚为基础的金纳米颗粒造成的死亡率高于市售印楝杀虫剂(vijayneem)。Ag+和Au+水溶液能显著降低蓖麻弧菌幼虫的体重。PO-AgNPs和POAuNPs处理显著增加了食物消耗和同化，但降低了转化，从而影响了生长。PO-AgNPs和PO-AuNPs处理在幼虫、蛹和成虫的发育时期、繁殖力和孵化率方面存在显著差异。建议将PO-AgNPs和PO-AuNPs整合到害虫管理中;然而，在推荐使用这些生物纳米颗粒之前，必须进行实地评估和生物安全性评估。

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journal of biopesticides Agricultural and Biological Sciences-Agronomy and Crop Science

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