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游泳1,2,应碧华1,2,赖露芳1,2,李振阳1,2,陈诗瑶1,2,魏辉1,2,林涛1,2,#,曾兆华1,2,. 4种烟嘧磺隆多元复配除草剂对意大利蜜蜂和玉米螟赤眼蜂的急性毒性及初级风险评估[J]. 生态毒理学报, 2018, 13(6): 298-306
4种烟嘧磺隆多元复配除草剂对意大利蜜蜂和玉米螟赤眼蜂的急性毒性及初级风险评估
The Acute Toxicity and Risk Assessment of Four Multi-Combination Nicosulfuron to Apis mellifera and Trichogramma ostriniae
投稿时间:2018-04-12  修订日期:2018-07-13
DOI:
中文关键词:  烟嘧磺隆  意大利蜜蜂  玉米螟赤眼蜂  急性毒性  风险评估
英文关键词:nicosulfuron  Apis mellifera  Trichogramma ostriniae  acute toxicity  risk assessment
基金项目:福建省自然科学基金项目(2016J01139);福建省省属公益类科研院所专项(2016R1023-9; 2014R1024-6; 2017R1025-11)
作者单位
游泳1,2,应碧华1,2,赖露芳1,2,李振阳1,2,陈诗瑶1,2,魏辉1,2,林涛1,2,#,曾兆华1,2, 1. 福建省农业科学院 植物保护研究所福州 350013 2. 福建省农作物害虫监测与综合治理重点实验室福州 350013 
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中文摘要:
      为明确4种烟嘧磺隆复配除草剂对意大利蜜蜂和玉米螟赤眼蜂的急性毒性影响并评估其初级风险。采用饲喂法、点滴法和玻璃管药膜法,分别测定了8%烟嘧·氯吡嘧磺隆、16%烟嘧·硝磺·氯吡嘧磺隆、36%烟嘧·莠去津和22%烟嘧·氯吡·氯氟吡氧乙酸异辛酯对意大利蜜蜂成年工蜂和玉米螟赤眼蜂的急性毒性,并分别采用危害商值和安全系数进行初级风险评估。结果表明,上述4种制剂对意大利蜜蜂成年工蜂的经口毒性48 h-LD50(半致死剂量,median lethal dose)分别为68.03、1.60×102、1.40×102和>100 μg a.i.·蜂-1,接触毒性48 h-LD50分别为18.53、53.01、89.98和>100 μg a.i.·蜂-1,危害商值均小于50,对意大利蜜蜂均为低毒且低风险。4种制剂对玉米螟赤眼蜂的急性毒性24 h-LR50(半致死用量,median lethal rate)分别为1.88×10-4、5.46×10-4、2.12×10-3和1.68×10-3 mg a.i.·cm-2,安全系数分别为0.16、0.23、0.59和0.51,其中8%烟嘧·氯吡嘧磺隆和16%烟嘧·硝磺·氯吡嘧磺隆对玉米螟赤眼蜂为高风险性,36%烟嘧·莠去津和22%烟嘧·氯吡·氯氟吡氧乙酸异辛酯为中等风险性。因此,这4种复配制剂对蜜蜂成年工蜂的风险性较低,但对赤眼蜂的风险性较高,所以在喷洒防除期间应与赤眼蜂释放期错开。
  
AuthorAffiliation
You Yong1,2, Ying Bihua1,2, Lai Lufang1,2, Li Zhenyang1,2, Chen Shiyao1,2, Wei Hui1,2, Lin Tao1,2,#, Zeng Zhaohua1,2,*1. Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China 2. Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Fuzhou 350013, China
英文摘要:
      To evaluate the acute toxicity and risk of four multi-combination nicosulfurons, including 8% nicosulfuron·halosulfuron-methyl OD, 16% nicosulfuron·mesotrione·halosulfuron-methyl OD, 36% nicosulfuron·atrazine OD and 22% nicosulfuron·halosulfuron-methyl·fluroxypyr-meptyl OD, the acute toxicity of the herbicides to Apis mellifera and Trichogramma ostriniae were tested using oral-feeding and topical application on A. mellifera, and film bioassay on T. ostriniae. The first-tier risk assessment was evaluated by hazard quotients (HQ) for A. mellifera and risk quotients (RQ) for T. ostriniae. The results showed that the 48 h-LD50 (median lethal dose) values of acute oral toxicity to A. mellifera were 68.03, 1.60×102, 1.40×102 and >100 μg a.i.·bee-1, respectively, and the 48 h-LD50 values of acute contact toxicity were 18.53, 53.01, 89.98 and >100 μg a.i.·bee-1, respectively. The HQ values were all less than 50. The 24 h-LR50 (median lethal rate) values of acute toxicity to T. ostriniae were 1.88×10-4, 5.46×10-4, 2.12×10-3 and 1.68×10-3 mg a.i.·cm-2, respectively, and the RQ values were 0.16, 0.23, 0.59 and 0.51, respectively. The results indicated that the four multi-combination nicosulfurons all exhibited low toxicity and low risk to A. mellifera, whereas to T. ostriniae 8% nicosulfuron·halosulfuron-methyl OD and 16% nicosulfuron·mesotrione·halosulfuron-methyl OD posed a high risk, and 36% nicosulfuron·atrazine OD and 22% nicosulfuron·halosulfuron-methyl·fluroxypyr-meptyl OD were moderate. Therefore, an interval is recommended between releasing T. ostriniae and applying the herbicides.
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