| 黄伟玲1, 王芹芹1, 任学祥2, 芮昌辉1, 杨代斌1, 袁会珠1, 崔 丽1*.20种杀虫剂对不同龄期不同地理种群草地贪夜蛾的室内毒力测定[J].植物保护,2023,49(6):323-331. |
| 20种杀虫剂对不同龄期不同地理种群草地贪夜蛾的室内毒力测定 |
| Laboratory toxicity of 20 insecticides against the larvae of different instars from different geographical populations of Spodoptera frugiperda |
| 投稿时间：2022-05-06 修订日期：2023-06-24 |
| DOI：10.16688/j.zwbh.2022264 |
| 中文关键词: 草地贪夜蛾 杀虫剂 毒力测定 饲料表面涂药法 不同地理种群 不同龄期 |
| 英文关键词:Spodoptera frugiperda insecticide toxicity test diet-overlay bioassay different geographical populations larvae of different instars |
| 基金项目:国家重点研发计划(2022YFD1400904; 2021YFD1400704) |
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| 中文摘要: |
| 为有效防控新入侵的迁飞性害虫草地贪夜蛾, 指导科学用药, 本研究采用饲料表面涂药法测定了13类20种杀虫剂对云南省玉溪市红塔区(红塔种群)、广东省广州市花都区(花都种群)、广西壮族自治区钦州市钦南区(钦南种群)、云南省玉溪市华宁县(华宁种群)、海南省海口市秀英区(秀英种群)5个种群草地贪夜蛾3龄幼虫的毒力; 进而, 以红塔种群为相对敏感种群, 以华宁种群为抗性种群, 测定甲维盐、溴虫氟苯双酰胺、虱螨脲、氯虫苯甲酰胺、杀铃脲、虫螨腈、高效氯氟氰菊酯、茚虫威和氟苯虫酰胺9种杀虫剂对2个种群草地贪夜蛾5龄幼虫的毒力。结果表明, 20种杀虫剂对5个种群草地贪夜蛾3龄幼虫的毒力大小顺序依次为:甲维盐、溴虫氟苯双酰胺＞虱螨脲、杀铃脲、氟铃脲、氯虫苯甲酰胺＞高效氯氟氰菊酯、虫螨腈、多杀霉素＞溴氰虫酰胺、茚虫威、唑虫酰胺＞氟苯虫酰胺、联苯菊酯、甲氧虫酰肼＞毒死蜱、乙酰甲胺磷＞噻虫嗪＞啶虫脒、甲萘威; 9种杀虫剂对2个种群草地贪夜蛾5龄幼虫的毒力大小顺序依次为:甲维盐、溴虫氟苯双酰胺＞氯虫苯甲酰胺＞虱螨脲＞杀铃脲＞虫螨腈＞高效氯氟氰菊酯、茚虫威＞氟苯虫酰胺, 研究结果表明, 甲维盐、溴虫氟苯双酰胺、虱螨脲、氯虫苯甲酰胺4种杀虫剂对草地贪夜蛾3龄和5龄幼虫具有很高的活性, 是防治草地贪夜蛾的理想药剂, 该研究为合理选择有效杀虫剂进行田间防治提供了科学依据。 |
| 英文摘要: |
| In order to control Spodoptera frugiperda, a newly invaded migratory pest, and provide a scientific reference for future research, the toxicity of 20 common commercial chemical insecticides belonging to 13 chemical groups to the third-instar larvae of five S. frugiperda populations were determined in the laboratory by diet overlay bioassay. The populations were collected from five locations: Hongta district, Yuxi city, Yunnan province (Hongta population); Huadu district, Guangzhou city, Guangdong province (Huadu population); Qinnan district, Qinzhou city, Guangxi Zhuang Autonomous Region (Qinnan population); Huaning county, Yuxi city, Yunnan province (Huaning population); Xiuying district, Haikou city, Hainan province (Xiuying population). Hongta population was chosen as the relatively susceptible population and Huaning population was chosen as the resistant population according to the toxicity results. Broflanilide, emamectin benzoate, chlorantraniliprole, lufenuron, triflumuron, chlorfenapyr, lamda-cyhalothrin, indoxacarb and flubendiamide were chosen due to their high toxicity to the fifth-instar larvae of Hongta and Huaning populations. The results showed that their toxicities to the third-instar larvae of the five populations were as followed: emamectin benzoate or broflanilide ＞ lufenuron, triflumuron, hexaflumuron or chlorantraniliprole ＞ lambda-cyhalothrin, chlorfenapyr, or spinosad ＞ cyantraniliprole, indoxacarb or tolfenpyrad ＞ flubendiamide, bifenthrin or methoxyfenozide ＞ acetamiprid or chlorpyrifos ＞ thiamethoxam ＞ acetamiprid or carbaryl. The toxicities to the fifth-instar larvae of two populations were: emamectin benzoate or broflanilide ＞ chlorantraniliprole ＞ lufenuron ＞ triflumuron ＞ chlorfenapyr ＞ lambda-cyhalothrin or indoxacarb ＞ flubendiamide. These results indicated that the four insecticides (emamectin benzoate, broflanilide, lufenuron and chlorantraniliprole) had high activity against the third and fifth instar larvae of S. frugiperda, and they were ideal insecticides for controlling S. frugiperda. This study provided a scientific basis for the effective control of S. frugiperda in the field. |
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