江西不同地区小菜蛾对9种杀虫剂的敏感性比较

摘要

2013年采取浸叶法测定了江西省5个地区田间小菜蛾对9种杀虫剂的敏感性。结果表明：小菜蛾5个地理种群对BT、溴虫腈和丁醚脲表现为敏感至低水平抗性；对啶虫隆、氯虫苯甲酰胺和茚虫威均表现为中等及其以下水平抗性；对阿维菌素和高效氯氰菊酯已产生了高水平的抗性。除了吉水种群对多杀菌素表现出高抗外，其余4个种群均表现出中等或中等以下水平抗性。%The susceptibility of field populations of Plutella xylostella from five areas of Jiangxi province to nine insecticides was tested by using leaf-dipping method in 2013.It was found that 5 field populations of Plutella xylostella showed sensitive or low re-sistance to BT, Chlorfenapyr and Diafenthiuron , moderate or middle-low resistance to Chlorfluazuron , Chlorantraniliprole and In-doxacarb, and high resistance to Abamectin and beta -Cypermethrin.Among the tested five populations , the field population in Jishui revealed a high resistance to Spinosad , while the others showed a moderate or middle -low resistance to this insecticide .