海南瓜棉蚜对敌敌畏、功夫、万灵和速灭杀丁的敏感性测定  

Susceptibility of Cotton Aphids(Aphis gossypii Glover) to Dichlorvos,Cyhalothrin, Fenvalerate and Methomyl in Hainan

作　　者：吕烈标 陈青[2] 黄华平[2] 彭正强[2] 唐超[2] 金启安[2] 温海波[2] 

机构地区：[1]海南省文昌市森林植物检疫站,海南文昌571339 [2]中国热带农业科学院环境与植物保护研究所\海南省热带农业有害生物检测监控重点实验室,海南儋州571737

出　　处：《热带农业科学》2008年第6期22-24,共3页Chinese Journal of Tropical Agriculture

基　　金：国家支撑计划(2007BAD48B07-03);中国热带农业科学院科技基金(RKY0513)。

摘　　要：对海南省崖城、金江、通什和两院地区西瓜上的瓜棉蚜进行敌敌畏(DDV)、功夫、万灵和速灭杀丁的敏感性研究。结果表明,不同地区瓜棉蚜对敌敌畏、功夫、万灵和速灭杀丁的敏感性存在明显差异。崖城和金江两地区瓜棉蚜种群对功夫、万灵、速灭杀丁和DDV均表现出较强的抗药性。以两院地区瓜棉蚜作为敏感品系,崖城和金江两地区瓜棉蚜种群对功夫、万灵、速灭杀丁、DDV的LC50抗性比值分别为21.86、22.78、17.88、13.49和10.91、12.59、11.47和13.49倍。通什地区的瓜棉蚜对功夫、万灵、速灭杀丁和DDV的抗性也相对较高,与两院种群LC50的抗性比值分别为1.58、12.27、4.45和2.28倍。崖城、金江和通什地区瓜棉蚜种群对功夫、万灵、速灭杀丁和DDV抗性种群的异质性很强。A preliminary investigation of the susceptibility of cotton aphid to dichlorvos, cyhalothrin, fenvalerate and methomyl were made at Jinjiang, Liangyuan, Yacheng and Tongshi in Hainan Province. The results showed that the cotton aphids from different areas were obviously different in susceptibility to dichlorvos, cyhalothrin, fenvalerate and methomyl. The cotton aphid populations from Yacheng and Jinjiang were significantly tolerant to cyhalothrin, fenvalerate, methomyl and dichlorvos, and their tolerance ratios to these pesticides at LC50 were 21.86, 22.78, 17.88 and 13.93-fold in Yachen and 10.91, 12.59-, 11.47 and 13.49-fold in Jinjiang when the aphids from Liangyuan were used as the susceptible. The cotton aphids from Tongshi had a higher tolerance to cyhalothrin, fenvalerate, methomyl and dichlorvos, and their resistance ratios over the aphid populations from Liangyuan at LC50 were 1.58, 12.27, 4.45 and 2.28-fold. Furthermore, the cotton aphid populations from Yachen, Jinjiang and Tongshi had a higher heterogeneity of tolerance to cyhalothrin,renvalerate,methomyl and dichtorvos.It is icconmended thet cyhatothrin,fenvalerate, methomyl and dichlorvos should be less used to control cotton aphids in Hainan so as not to develop more highly tolerant cotton ahpid populations.

关 键 词：瓜棉蚜(Aphis GOSSYPII Glover) 功夫 敌敌畏 万灵 速灭杀丁 敏感性 

分 类 号：S435.622.1[农业科学—农业昆虫与害虫防治] S858.927.4[农业科学—植物保护]