Influence of mixed biocide GCSC-BtA on the pupae and adult stages of Apanteles plutellae Kurd. (Hym., Braconidae) and its host. Plutella xylostella (L.) (Lep., Plutellidae)

Ç. Şengonca, B. Liu
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引用次数: 9

Abstract

This paper deals with the influence of the mixed biocide GCSC-BtA on the pupal and adult stages of Apanteles plutellae Kurd. (Hym., Braconidae) and its host, Plutella xylostella (L.) (Lep., Plutellidae). The results show that mortalities of the pupae of P. xylostella in the direct-dip bioassay were 84.67 %, that of the adults in the residue bioassay at 1.2500 mg/ml concentration of GCSC-BtA were 78.00 % which were significantly higher than the mortality values for the pupae with 54.62 % and adults with 48.13 % of A. plutellae. In contrast, cypermethrin showed extremely high toxicity to the pupae with 94.58 % and adults with 86.00 % mortality values of A. plutellae as compared to the low mortality values of 42.14 % for the pupae and 32.11 % for the adults of P. xylostella, with the same concentrations and bioassay methods. The LC50 values of GCSC-BtA were 0.3402, 0.5516 and 1.2405, 1.9480 mg/ml for the pupae and adults of P. xylostella and A. plutellae, respectively, while the LC50 values for cypermethrin were 1.5652, 2.3471 and 0.1096, 0.1152 mg/ml, respectively. GCSC-BtA was found more toxic to the pupae and adults of P. xylostella and safer to the pupae and adults of A. plutellae than cypermethrin. The possibilty of using GCSC-BtA against P. xylostella under partial control by A. plutellae in vegetable fields is discussed.

混合杀生物剂GCSC-BtA对小菜蛾蛹期和成虫期的影响。(Hym.Braconidae)及其寄主。小菜蛾
本文研究了混合杀菌剂GCSC-BtA对小菜蛾蛹期和成虫期的影响。(Hym.Braconidae)及其寄主小菜蛾(Plutella xylostella(L.))(Lep.Plutellidae)。结果表明,用直接浸渍法测定小菜蛾蛹的死亡率为84.67 %, 在1.2500的残留物生物测定中的成虫 mg/ml的GCSC BtA浓度为78.00 % 显著高于蛹的死亡率54.62 % 成年人48.13 % A.plutellae。相反,氯氰菊酯对蛹的毒性极高,达94.58 % 成年人86.00 % plutellae的死亡率值与42.14的低死亡率值相比 % 蛹和32.11 % 以相同的浓度和生物测定方法对小菜蛾成虫进行测定。GCSC BtA的LC50值分别为0.3402、0.5516和1.2405、1.9480 小菜蛾和小菜蛾的蛹和成虫的LC50值分别为1.5652、2.3471和0.1096、0.1152 mg/ml。GCSC BtA对小菜蛾蛹和成虫毒性较大,对小菜蛾幼虫和成虫安全。plutellae而不是氯氰菊酯。探讨了在菜地小菜蛾部分控制下使用GCSC BtA防治小菜蛾的可能性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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