| 摘要: |
| 测定了陕西省大荔、渭南、三原和杨陵４县（区）棉铃虫对溴氰菊酯、氰戊菊酯、氯氰菊酯及三氟氯氰菊酯和甲氰菊酯的抗药性。结果表明，各地棉铃虫对溴氰菊酯已产生了中等到高等程度抗药性，其抗性倍数为２９～５１倍；对氰戊菊酯处于耐药性到低等抗性阶段，其抗性倍数为３～７倍；对氯氰菊酯、三氟氯氰菊酯和甲氰菊酯尚未产生明显抗药性。因各地用药习惯、种类和水平不同，导致其种群间的敏感度存在一定差异。 |
| 关键词: 棉铃虫，拟除虫菊酯杀虫剂，抗药性 |
| DOI： |
| 分类号:S482.3 |
| 基金项目:陕西省自然科学基金资助项目 |
|
| A Determination of the Insecticide Resistance of Cotton Bollworm in Shaanxi Province to Several Pyrethroids |
|
Zhang Xing Yang Chongzhen Wang Xinglin,Zhang Xing Yang Chongzhen Wang Xinglin,Zhang Xing Yang Chongzhen Wang Xinglin
|
| Abstract: |
| The insecticide resistibility of cotton bollworm (Heliothis armigera) to
decamethrin,fenvalerate,cypermethrin,cyhalothrin and fenpropathrin was determined in
Dali County,Sanyuan County,Weinan County and Yangling District of Shaanxi
Province.The results of the bioassay showed that the cotton bollworm from these four
Places had a moderate to high level resistance to decamethrin (about 29～51 times higher than susceptible ones)and had a tolerance to low resistance to fenvalerate about 3～7
times higher than susceptible ones),while its resistance to cypermethrin and cyhalothrin
was still quite low.There existed a susceptibility difference in the determined areas due
to different ways,kinds and doses of chemieal application |
| Key words: cotton bollworm(Heliothis armigera),insecticide resistance,pyrethroids |
