Evaluation of Highly Detectable Pesticides Sprayed in Brassica napus L.: Degradation Behavior and Risk Assessment for Honeybees
文献类型： 外文期刊
作者： Tong, Zhou 1 ; Duan, Jinsheng 1 ; Wu, Yancan 3 ; Liu, Qiongqiong 3 ; He, Qibao 3 ; Shi, Yanhong 5 ; Yu, Linsheng 6 ; Cao, 1 ;
作者机构： 1.Anhui Acad Agr Sci, Inst Plant Protect & Agroprod Safety, Hefei 230031, Anhui, Peoples R China
2.Minist Agr, Key Lab Agroprod Safety Risk Evaluat Hefei, Hefei 230031, Anhui, Peoples R China
3.Anhui Agr Univ, Sch Plant Protect, Hefei 230036, Anhui, Peoples R China
4.Hefei Testing & Inspect Ctr Agr Prod Qual, Hefei 230601, Anhui, Peoples R China
5.Anhui Agr Univ, Sch Resource & Environm, Hefei 230036, Anhui, Peoples R China
6.Anhui Agr Univ, Sch Anim Sci & Technol, Hefei 230036, Anhui, Peoples R China
关键词： pesticide; honeybee; risk; field
期刊名称：MOLECULES （ 影响因子：4.411； 五年影响因子：4.587 ）
ISSN： 1420-3049
年卷期： 2018 年 23 卷 10 期
页码：
收录情况： SCI
摘要： Honeybees are major pollinators of agricultural crops and many other plants in natural ecosystems alike. In recent years, managed honeybee colonies have decreased rapidly. The application of pesticides is hypothesized to be an important route leading to colony loss. Herein, a quick, easy, cheap, effective, rugged, and safe (QuEChERS) method was used to determine eight highly detectable pesticides (carbendazim, prochloraz, pyrimethanil, fenpropathrin, chlorpyrifos, imidacloprid, thiamethoxam, and acetamiprid) in rape flowers. A field experiment was conducted at the recommended dose to evaluate the contact exposure risk posed to honeybees for 0-14 days after treatment. The initial residue deposits of neonicotinoids and fungicides among these compounds were 0.4-1.3 mg/kg and 11.7-32.3 mg/kg, respectively, and 6.4 mg/kg for fenpropathrin and 4.2 mg/kg for chlorpyrifos. The risk was quantified using the flower hazard quotient (FHQ) value. According to the data, we considered imidacloprid, thiamethoxam, chlorpyrifos, fenpropathrin, and prochloraz to pose an unacceptable risk to honeybees after spraying in fields, while fungicides (carbendazim and pyrimethanil) and acetamiprid posed moderate or acceptable risks to honeybees. Therefore, acetamiprid can be used instead of imidacloprid and thiamethoxam to protect rape from some insects in agriculture, and the application of prochloraz should be reduced.
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