Nanoformulation of imidacloprid insecticide with biocompatible materials and its ecological and physiological effects on wheat green aphid, Schizaphis graminum Rondani

IF 1.1 3区农林科学 Q3 ENTOMOLOGY

Journal of Asia-pacific Entomology Pub Date : 2024-11-15 DOI:10.1016/j.aspen.2024.102332

Roya Ahmadpour , Hooshang Rafiee Dastjerdi , Ali Golizadeh , Aziz Habibi Yangjeh , Zahra Abedi , Vahid Mahdavi

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Abstract

Nanoformulation of imidacloprid was prepared using the biocompatible polymer of polyethylene glycol (PEG). TEM image showed that the spherical nanoparticles were 50–150 nm. The lethal concntrationof 30 percent (LC₃₀) and 50 percent (LC₅₀) of the insecticide and its nanoformulation studied on adult female aphids were 21.46 and 58.56 mg a.i./L for pure insecticide, and 3.79 and 4.94 mg a.i./L for nanoformulated insecticide, respectively. The results of the sublethal effect test (LC₃₀) of this insecticide showed that nymphal developmental in nanoimidacloprid (5.55 days) was higher than control (4.22 days). The results showed that the insecticide treatments significantly reduced the demographic characteristics of Schizaphis graminum. The intrinsic rates of increase (r) values of aphids in control, insecticide treatment and its nanoformulation were 0.421, 0.315 and 0.29, respectively. The results of evaluating the effect of the studied insecticide on the specific activity of beta-esterase and glutathione S-transferase showed that there was no significant difference in the activity of this enzymes between the control and the insecticide treatment and its nanoformulation. Based on the obtained results, it can be concluded that after conducting additional tests, the insecticide nanoformulation can be used due to its effectiveness in lower concentrations in the management of sucking pests such as aphids.

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吡虫啉杀虫剂与生物相容性材料的纳米制剂及其对小麦绿蚜 Schizaphis graminum Rondani 的生态和生理效应

使用生物相容性聚合物聚乙二醇（PEG）制备了吡虫啉纳米制剂。TEM 图像显示，球形纳米颗粒的尺寸为 50-150 nm。该杀虫剂及其纳米制剂对成年雌性蚜虫的致死浓度分别为 30%（LC30）和 50%（LC50），纯杀虫剂分别为 21.46 和 58.56 mg a.i./L，纳米制剂分别为 3.79 和 4.94 mg a.i./L。该杀虫剂的亚致死效应试验（LC30）结果表明，纳米虫螨腈的若虫发育期（5.55 天）高于对照组（4.22 天）。结果表明，杀虫剂处理显著降低了禾谷类五步蛇的繁殖特征。对照、杀虫剂处理及其纳米制剂的蚜虫内在增长率（r）值分别为 0.421、0.315 和 0.29。所研究的杀虫剂对 beta-酯酶和谷胱甘肽 S-转移酶特定活性的影响评估结果表明，对照组和杀虫剂处理及其纳米制剂中这两种酶的活性没有显著差异。根据所获得的结果，可以得出结论，在进行更多试验后，纳米杀虫剂可以用于防治蚜虫等吸食性害虫，因为它在较低浓度下就能发挥效力。

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来源期刊

Journal of Asia-pacific Entomology Agricultural and Biological Sciences-Insect Science

CiteScore

2.70

自引率

6.70%

发文量

152

审稿时长

69 days

期刊介绍： The journal publishes original research papers, review articles and short communications in the basic and applied area concerning insects, mites or other arthropods and nematodes of economic importance in agriculture, forestry, industry, human and animal health, and natural resource and environment management, and is the official journal of the Korean Society of Applied Entomology and the Taiwan Entomological Society.