摘要:为了明确我国主要水稻产区田间褐飞虱种群对毒死蜱和呋虫胺的抗药性水平,指导田间褐飞虱的合理用药,本试验于2016年在室内采用稻茎浸渍法对不同褐飞虱种群进行了抗药性监测,监测结果表明:湖北孝感等6个褐飞虱种群均处于中等水平抗性(18。15-49。14倍),各地种群间抗药性水平差异不大;对新烟碱类药剂呋虫胺的抗药性监测发现,除福建永安褐飞虱种群对呋虫胺处于敏感(2。1倍)外,福建福州褐飞虱种群对呋虫胺处于低等水平抗性(6。7倍),江西泰和等4个褐飞虱种群对呋虫胺均已达到中等水平抗性(11。7-48。4倍)。本研究通过对我国不同地区褐飞虱种群对毒死蜱和呋虫胺的抗药性监测,明确了褐飞虱对这两种杀虫剂的抗药性发展水平,从而为这两种药机的合理用药和抗性治理策略提供依据。81759
关键词:褐飞虱;稻茎浸渍法;抗药性监测;抗药性
resistance monitoring TO CHLORPYRIFOS AND DINOTEFURAN IN Nilaparvata lugens(Stal) IN 2016
Abstract: In order to clarify the resistance level of brown planthopper, Nilaparvata lugens (Stål), (BPH) to chlorpyrifos and dinotefuran in main rice planting area in China。 Using rice stem dipping method,。we conducted the resistance monitoring of BPH, which collected from different provinces in 2016。 The results showed there is no obvious difference in the resistance of BPH to organophosphorus insecticide chlorpyrifos among the field populations in 2016, Xiaogan population in Hubei province and other 5 populations have achieved at moderate resistance level (RR=18。15 ~ 49。14 folds)。 Concerning the new nicotinic insecticide dinotefuran resistance monitoring, the results showed that only the populations of Yongan from Fujian province was still susceptible (RR=2。1 folds), and the populations of Fuzhou from Fujian province were at low resistance level (RR=6。7 folds)。 However, Taihe in Jiangxi province and other 3 populations have achieved at moderate levels of resistance (RR=11。7-48。4 folds)。 This study could provide insecticide resistance information to guide the rational use of insecticides in the field and design the strategy on resistance management。
Key words: Nilaparvata lugens; Rice stem dipping method; Resistance Monitoring; Chlorpyrifos; Dinotefuran
目 录
摘要1
关键词1
Abstract1
Key words1
引言1
1材料与方法2
1。1供试昆虫 2
1。2 供试药剂4
1。3 试验方法4
1。4 数据处理计算4
1。5 敏感基线 4
2结果与分析4
2。1褐飞虱对毒死蜱的抗性监测4
2。2褐飞虱对呋虫胺的抗性监测5
3。讨论5
致谢 6
参考文献 6
2016年田间褐飞虱对毒死蜱和呋虫胺的抗药性监测
引言
世界上有大约一半的人口以水稻作为主食,每年消费稻米的人口在快速地增长[1]。水稻也是我国主要的粮食作物,所以保障水稻的优质高产对于维护我国社会稳定和经济的快速发展具有重要作用。作为水稻属单主寄生害虫,褐飞虱因其较强的环境适应性、高繁殖率、易爆发性、毁灭性、迁飞性和再猖獗等特点,对我国水稻产量造成严重威胁。目前在褐飞虱防治上,化学防治依然是最有效的措施,但随着化学农药使用量的不断增加和不合理的使用,导致褐飞虱对常用防治药剂产生了不同程度的抗性。而研发新型药剂需要一定的时间,短期内又无法完全停止常规药剂的使用,故当务之急必是保护现有农药资源,延缓或遏制褐飞虱对常规药剂的抗性发展速度,明确目前我国田间褐飞虱种群对常用杀虫剂的抗性发展水平及变化趋势,从而指导田间合理用药和制定抗性治理策略,保障水稻的健康可持续生产。文献综述