郭晓君　封云涛　李娅　庾琴　李光玉　张润祥

摘要 针对苹果黄蚜防治药剂类型单一、药剂敏感性下降等问题，采用浸叶法开展几种药剂对苹果黄蚜室内毒力测定，并用共毒系数法进行联合毒力评价。结果显示，氟啶虫胺腈和阿维菌素在8∶1～1∶8、氟啶虫胺腈和吡虫啉1∶1、氟啶虫胺腈和高效氯氟氰菊酯在4∶1～1∶4配比范围对苹果黄蚜有增效作用，3种组合最佳增效比均为1∶1。田间应用结果显示，药后3～21 d，22%氟啶虫胺腈SC单剂对苹果黄蚜防效达94.77%～99.40%;22%氟啶虫胺腈SC分别与5%阿维菌素EC、70%吡虫啉WG和2.5%高效氯氟氰菊酯EW按有效成分1∶1混配后对苹果黄蚜防效达86.43%～97.00%，均显著高于相应单剂对照，持效期可达21 d。推荐采用氟啶虫胺腈单剂及氟啶虫胺腈与阿维菌素、吡虫啉或高效氯氟氰菊酯混配剂作为替代药剂防治苹果黄蚜。

关键词 苹果黄蚜; 氟啶虫胺腈; 药剂复配; 联合毒力; 效果评价

中图分类号： S 433.3， S 482.3

文献标识码： B

DOI： 10.16688/j.zwbh.2019174

Co-toxicities and efficacy evaluation of sulfoxaflor mixed with other insecticides on Aphis citricola

GUO Xiaojun1，2， FENG Yuntao1，2， LI Ya1，2， YU Qin1，2， LI Guangyu1， ZHANG Runxiang1，2*

（1. Institute of Plant Protection， Shanxi Academy of Agricultural Sciences， Taiyuan 030031， China;

2. Shanxi Key Laboratory of Integrated Pest Management in Agriculture， Taiyuan 030031， China）

Abstract

Aiming at the problems of few insecticide varieties and the decreased insecticide sensitivity， the combined toxicities of several insecticides to Aphis citricola were measured by slide slip method and evaluated by co-toxicity coefficient method. The results showed that the mixture ratios of sulfoxaflor and abamectin in 8∶1-1∶8， sulfoxaflor and imidacloprid in 1∶1， sulfoxaflor and lambda-cyhalothrin in 4∶1-1∶4 were synergistic combinations to A.citricola，and the optimum synergistic ratio of the three combinations was 1∶1. Field trials indicated that the control efficiency of sulfoxaflor 22% SC against A.citricola were 94.77%-99.40% after 3 to 21 days， and that of the mixture of sulfoxaflor 22% SC with abamectin 5% EC， imidacloprid 70% WG or lambda-cyhalothrin 2.5% EW was 86.43%-97.00%， significantly higher than that of the single control agent， and the persistence was 21 days. Accordingly， sulfoxaflor and the three synergistic combinations could be recommended as alternative insecticides to control A.citricola.

Key words

Aphis citricola; sulfoxaflor; insecticide mixture; co-toxicity; efficacy evaluation

蘋果黄蚜Aphis citricola van der Goot又名绣线菊蚜，以若蚜和成蚜在果树新梢群集汲取汁液、分泌蜜露至叶面上，影响果树光合作用，严重时引起早期落叶、影响果树生长态势。苹果黄蚜发生期长，从5月伊始至9月可贯穿苹果整个生长周期，目前已成为苹果树最主要害虫之一[1-2]。苹果黄蚜常用化学防治药剂有新烟碱类、拟除虫菊酯类、有机磷类等，由于长期使用单一药剂导致害虫对药剂敏感性下降、抗性升高、防效降低：如封云涛等研究表明马拉硫磷对苹果黄蚜的相对毒力不足啶虫脒的1/400[3]，彭波等研究表明山东地区多个苹果黄蚜种群对顺式氯氰菊酯和氧化乐果产生了中至高水平抗性[4]。……