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黄芊，蒋婷，蒋显斌，凌炎，陈玉冲，龙丽萍,2017,广西回迁粘虫产卵能力及其对11种杀虫剂敏感性测定[J].环境昆虫学报,(6):1363-1368

广西回迁粘虫产卵能力及其对11种杀虫剂敏感性测定

Oviposition ability of Mythimna separata (Walker) and its sensitivity to eleven insecticides in Guangxi

DOI：

中文关键词: 粘虫迁飞毒力测定氯虫苯甲酰胺甲维盐茚虫威阿维菌素

英文关键词:Mythimna separata (Walker) migration toxicity determination chlorantraniliprole emamectin benzoate indoxacarb avermectin

基金项目:公益性行业（农业）科研专项子课题（201403031）；国家自然科学基金（31560510，31360437）；广西自然科学基金（2017GXNSFBA198227）；广西农科院基本科研业务专项（2016YM30，2017YM19，2015YT18）；广西农科院科技发展基金（2017ZX13，2016JZ23，2015JZ26，2015JZ18）

作者	单位
黄芊，蒋婷，蒋显斌，凌炎，陈玉冲，龙丽萍	1.广西农业科学院，水稻研究所/广西水稻遗传育种重点实验室，南宁 530007；2.广西大学农学院，南宁 530005；3.广西农业科学院，植物保护研究所/广西作物病虫害生物学重点实验室，南宁 530007；4.广西农业科学院，南宁 530007

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中文摘要:

为广西粘虫预测预报和科学使用化学农药提供参考依据，本研究于2015年10月上旬田间采集回迁至广西的粘虫，带回室内观察其产卵能力，并采用浸叶法测定粘虫对11种杀虫剂的敏感性。结果表明回迁粘虫的平均蛹历期、产卵前期和产卵期分别为10.30 d、7.13 d和7.50 d，羽化率为52.15%，雌雄虫性比为1∶1.31，单雌平均产卵量为894.81粒，平均卵孵化率为91.49%，雌雄虫平均寿命分别为14.00 d和11.81 d。杀虫剂敏感性测定结果表明，氯虫苯甲酰胺、甲维盐、茚虫威和阿维菌素对粘虫3龄幼虫LC50值分别为0.24、1.16、3.88和5.67 mg/L，在11种杀虫剂中毒力较高。因此,建议在每年10月中下旬可诱捕粘虫成蛾，11月上旬诱卵；粘虫大爆发时可轮换使用氯虫苯甲酰胺、甲维盐、茚虫威和阿维菌素进行防治。

英文摘要:

To provide a reference to outbreak forecasts ofMythimna separata (Walker) in Guangxi, and quantitative use of chemical pesticides against it, we collected M. separatathat migrated back to Guangxi from the field in early October, 2015, and assessed their oviposition ability and sensitivity of larvae to 11 different insecticides using leaf dip in the laboratory. The mean duration of pupa, pre-oviposition, oviposition was 10.30, 7.13 and 7.50 days, respectively. The emergence rate was 52.15% and the sex ratio was 1∶1.31 (F∶M）. The average fecundity was 894.81 eggs per female and the hatch rate was 91.49%. The average longevity of female and male was 14.00 and 11.80 days, respectively. The sensitivity test showed that chlorantraniliprole, emamectin benzoate, indoxacarb and avermectin were relatively effective against third instarlarvae among the 11 insecticides. The LC50 of these pesticides was 0.24, 1.16, 3.88 and 5.67 mg/L, respectively. The results suggested that trapping adults in middle to late October, and trapping eggs in early November were recommended for outbreak controls ofM. separatain Guangxi. Chemical pesticides, especially chlorantraniliprole, emamectin benzoate, indoxacarb and avermectin, could be used in rotation for controlling M. separata larvae.

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