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不同杀虫剂对铜绿丽金龟的室内毒力测定及混配增效药剂筛选

2020-08-25何发林乔治华姚向峰于灏泳孙石昂李向东张吉旺姜兴印

植物保护 2020年4期

何发林 乔治华 姚向峰 于灏泳 孙石昂 李向东 张吉旺 姜兴印

摘要 为了筛选出对蛴螬具有增效作用的复配药剂组合,室内采用浸虫法测定了多个复配剂对铜绿丽金龟2龄幼虫的联合毒力,并用共毒因子法与共毒系数法相结合评价了复配组合的联合作用。结果表明,氯虫苯甲酰胺与硫双威、毒死蜱、噻虫胺、氟虫腈、联苯菊酯、吡虫啉、高效氯氟氰菊酯分别按9∶2、5∶1、3∶4、9∶25、18∶5、1∶3、18∶23复配时增效作用最显著,其共毒系数分别为169、248、335、144、195、185、184;高效氯氟氰菊酯与噻虫胺按15∶2复配时增效作用最明显,共毒系数为166;联苯菊酯与硫双威、吡虫啉分别按5∶2、5∶9复配时增效作用最显著,共毒系数分别为216、244。

关键词 铜绿丽金龟; 复配; 共毒因子; 共毒系数

中图分类号: S 433.5

文献标识码: B

DOI: 10.16688/j.zwbh.2019191

Co-toxicity of different insecticides against Anomala corpulenta and

screening of synergistic agents mixed with different insecticides

HE Falin, QIAO Zhihua, YAO Xiangfeng, YU Haoyong, SUN Shiang,

LI Xiangdong, ZHANG Jiwang, JIANG Xingyin*

(College of Plant Protection, Key Laboratory of Pesticide Toxicology and Application Technique of

Shandong Province, Shandong Agricultural University, Taian 271018, China)

Abstract

In order to screen out the complex insecticides with synergistic effect on grubs, the combined toxicity of multiple compounding agents against the 2nd-instar of the Anomala corpulenta was determined by the method of immersing the insects. The combined effects of compound combinations were evaluated using co-toxicity factor method and co-toxicity coefficient method. The results revealed that the mixtures of chlorantraniliprole with thiodicarb, chlorpyrifos, clothianidin, fipronil, bifenthrin, imidacloprid and lambda-cyhalothrin at the ratio of 9∶2, 5∶1, 3∶4, 9∶25, 18∶5, 1∶3 and 18∶23,respectively, showed significant synergistic effect, with the co-toxicity coefficients (CTCs) of 169, 248, 335, 144, 195, 185 and 184, respectively. The mixtures of lambda-cyhalothrin and clothianidin (15∶2) showed the highest synergism with the CTC of 166, and the CTC of the mixtures of bifenthrin with thiodicarb and imidacloprid at the ratios of 5∶2 and 5∶9 were 216 and 244, respectively.

Key words

Anomala corpulenta; combination of pesticides; co-toxicity factor; co-toxicity coefficient

地下害蟲是国内外公认的难以预测和防治的重大害虫,主要为害农作物幼苗、根系及块茎等[1]。蛴螬为鞘翅目金龟甲总科幼虫的统称,是地下害虫中最大的类群,也是造成损失最大、危害最重的种类[2]。金龟甲幼虫与成虫均能造成严重危害,幼虫主要取食多种作物的地下根茎及荚果,造成作物枯萎死亡;而成虫则取食农作物、果树和林木等叶片,导致芽残叶破,甚至光枝秃秆[3],严重影响农产品的品质与产量。据调查统计,植物地下部分受害有86%是由金龟甲幼虫为害造成的[4-5],目前化学药剂是防治金龟甲的主要手段,其中以防治幼虫为主[6]。

为害农作物的金龟甲种类有10多种,种类因地而异,主要有丽金龟和鳃金龟两类[5]。其中铜绿……

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