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Field-evolved resistance and cross-resistance of the two-spotted spider mite, Tetranychus urticae, to bifenazate, cyenopyrafen and SYP-9625

文献类型： 外文期刊

作者： Chen, Jin-Cui 1 ; Gong, Ya-Jun 1 ; Shi, Pan 1 ; Wang, Ze-Hua 1 ; Cao, Li-Jun 1 ; Wang, Peng 2 ; Wei, Shu-Jun 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, 9 Shuguanghuayuan Middle Rd, Beijing 100097, Peoples R China

2.Dow AgroSci China Co Ltd, Shanghai Branch, Shanghai 201203, Peoples R China

关键词： Tetranychus urticae; Field population; Cross-resistance; Bioassay

期刊名称：EXPERIMENTAL AND APPLIED ACAROLOGY （ 影响因子：2.132； 五年影响因子：2.196 ）

ISSN： 0168-8162

年卷期： 2019 年 77 卷 4 期

页码：

收录情况： SCI

摘要： The acaricide bifenazate acts as complex III inhibitor whereas cyenopyrafen and SYP-9625 act as complex II inhibitors. All these acaricides are commonly used to control two-spotted spider mite (TSSM), Tetranychus urticae Koch. We examined field-evolved and laboratory-selected resistance of TSSM to these three acaricides and determined cross-resistance among them. Six field populations of TSSM showed low levels of resistance to bifenazate with resistance ratios ranging from 2.20 to 10.65 compared to a susceptible strain. SYP-9625, structurally similar to cyenopyrafen, showed slightly higher activity to TSSMs but significant cross-resistance in both field populations and a laboratory-selected strain by SYP-9625. However, low levels of resistance to these two chemicals were found in field populations even when used for short time periods. Cross-resistance was not found between bifenazate and Complex II inhibitors, cyenopyrafen and SYP-9625, in both field populations and the laboratory-selected strain. Field-evolved resistance of TSSM to the tested acaricides is still low and should be delayed by the implementation of resistance management practices. Cross-resistance between cyenopyrafen and SYP-9625 is obvious, so they should not be used together in resistance management strategies based on mode of action rotation.

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