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亚利桑那州 B 和 Q 生物型烟粉虱对邻苯二甲酰胺类杀虫剂的基础敏感性。

Baseline susceptibilities of B- and Q-biotype Bemisia tabaci to anthranilic diamides in Arizona.

机构信息

Department of Entomology and BIO5 institute, University of Arizona, Tucson, AZ, USA.

出版信息

Pest Manag Sci. 2012 Jan;68(1):83-91. doi: 10.1002/ps.2227. Epub 2011 Jun 28.

Abstract

BACKGROUND

Development of pyriproxyfen and neonicotinoid resistance in the B-biotype whitefly and recent introduction of the Q biotype have the potential to threaten current whitefly management programs in Arizona. The possibility of integrating the novel anthranilic diamides chlorantraniliprole and cyantraniliprole into the current program to tackle these threats largely depends on whether these compounds have cross-resistance with pyriproxyfen and neonicotinoids in whiteflies. To address this question, the authors bioassayed a susceptible B-biotype strain, a pyriproxyfen-resistant B-biotype strain, four multiply resistant Q-biotype strains and 16 B-biotype field populations from Arizona with a systemic uptake bioassay developed in the present study.

RESULTS

The magnitude of variations in LC(50) and LC(99) among the B-biotype populations or the Q-biotype strains was less than fivefold and tenfold, respectively, for both chlorantraniliprole and cyantraniliprole. The Q-biotype strains were relatively more tolerant than the B-biotype populations. No correlations were observed between the LC(50) (or LC(99)) values of the two diamides against the B- and Q-biotype populations tested and their survival rates at a discriminating dose of pyriproxyfen or imidacloprid.

CONCLUSION

These results indicate the absence of cross-resistance between the two anthranilic diamides and the currently used neonicotinoids and pyriproxyfen. Future variation in susceptibility of field populations to chlorantraniliprole and cyantraniliprole could be documented according to the baseline susceptibility range of the populations tested in this study.

摘要

背景

吡丙醚和新烟碱类杀虫剂抗性在 B 型烟粉虱中的发展以及 Q 型烟粉虱的新近引入,有可能威胁到亚利桑那州目前的烟粉虱管理计划。将新型邻苯二甲酰胺类杀虫剂氯虫苯甲酰胺和氰虫酰胺纳入当前计划以应对这些威胁的可能性在很大程度上取决于这些化合物是否与烟粉虱中的吡丙醚和新烟碱类杀虫剂产生交互抗性。为了解决这个问题,作者用本研究中建立的系统吸收生物测定法,对敏感的 B 型烟粉虱品系、吡丙醚抗性的 B 型烟粉虱品系、4 个多抗性 Q 型烟粉虱品系和来自亚利桑那州的 16 个 B 型烟粉虱田间种群进行了生物测定。

结果

对于氯虫苯甲酰胺和氰虫酰胺,B 型烟粉虱种群或 Q 型烟粉虱品系之间 LC(50)和 LC(99)的变化幅度均小于五倍和十倍。Q 型烟粉虱品系比 B 型烟粉虱种群相对更耐受。未观察到两种邻苯二甲酰胺对两种烟粉虱种群的 LC(50)(或 LC(99))值与其在吡丙醚或吡虫啉的判别剂量下的存活率之间存在相关性。

结论

这些结果表明,这两种邻苯二甲酰胺与目前使用的新烟碱类杀虫剂和吡丙醚之间不存在交互抗性。未来田间种群对氯虫苯甲酰胺和氰虫酰胺的敏感性变化可以根据本研究中测试种群的基线敏感性范围来记录。

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