摘要
为掌握云南省不同菜区小菜蛾种群对氯虫苯甲酰胺的抗药性水平及年度变化规律,于2009—2013年间连续5年,采用浸叶法监测了滇中通海县、滇西弥渡县和滇西南临沧市小菜蛾田间种群对氯虫苯甲酰胺的敏感性;同时,对通海小菜蛾田间种群的F1代,测定了磷酸三苯酯（TPP）、增效醚（PBO）和顺丁烯二酸二乙酯（DEM）3种增效剂对氯虫苯甲酰胺的增效作用。结果表明：自2009年以来,通海小菜蛾种群的抗药性水平持续上升,抗性倍数从2009年的2.30倍,逐渐发展到2012年的47.79倍和2013年的43.05倍,达到中等抗性水平;弥渡小菜蛾种群的抗药性水平除了2010年达12.35倍外,其余均处于低水平抗性;临沧市小菜蛾种群的抗药性水平在1.01~4.60倍之间,处于低水平抗性。3种增效剂均对氯虫苯甲酰胺无显著增效作用。
In order to understand the current situation and development of resistance of field population of diamondback moth, Plutella xylostella（ L.） to chlorantraniliprole in Yunnan Province, the sensitivity of three diamondback moth population from Tonghai County of central Yunnan,M idu County of w est Yunnan and Linxiang district of southw est Yunnan to chlorantraniliprole w ere determined by the leaf dipping method. M eanw hile,synergism effects of triphenyl phosphate（ TPP）,piperoayl butoxide（ PBO） and diethyl maleate（ DEM） to the F1 generation of Tonghai population w ere tested. The results show ed that the resistance levels of Tonghai population of P. xylostella to chlorantraniliprole show ed a tendency of going up yearly,w ith resistance index increased from 2. 30 in2009 to 47. 79 in 2012,and to 43. 05 in 2013,w hich reached middle level of resistance; M idu population of P. xylostella show ed low level resistance except in 2010 w hen the resistance index w as12. 35; Linxiang population of P. xylostella show ed low level of resistance,w ith resistance index remained betw een 1. 01- 4. 60 during 2009—2013. t The three compounds had no significant synergistic effects on the toxicity of chlorantraniliprole to P. xylostella.
出处
《农药学学报》
CAS
CSCD
北大核心
2014年第6期746-750,共5页
Chinese Journal of Pesticide Science
基金
国家公益性行业(农业)科研专项(200803001
201103021)
关键词
小菜蛾
氯虫苯甲酰胺
抗药性
增效作用
Plutella xylostella L.
chlorantraniliprole
insecticide resistance
synergistic effect
