山东省棕榈蓟马田间种群对7种杀虫剂的抗药性

Resistance of Thrips palmi to seven kinds of insecticides in Shandong Province

采用叶管药膜法测定了山东省4个蔬菜产区棕榈蓟马对7种杀虫剂的抗药性水平。结果表明，供试药剂毒力由大到小依次为多杀霉素＞甲氨基阿维菌素苯甲酸盐＞吡虫啉＞噻虫嗪＞吡蚜酮＞高效氯氟氰菊酯＞辛硫磷；济南、聊城和泰安地区的棕榈蓟马种群对7种药剂基本处于敏感状态，寿光地区的棕榈蓟马对多杀霉素、甲氨基阿维菌素苯甲酸盐、吡虫啉和吡蚜酮产生了6.99～10.83倍的低水平抗性。

Resistance of Thrips palmi collected from four vegetables production areas of Shandong Province to 7 kinds of insecticides was evaluated by using leaf tube residue method.LC50 value detection results showed that the toxicity orders of these insecticides were spinosad〉abamectin-aminomethyl〉 imidacloprid 〉 thiamethoxam〉pymetrozine〉lambda-cyhalothrin〉phoxim.T .palmi populations collected from Ji’nan,Tai’an and Li-aocheng districts were relatively sensitive to the 7 insecticides.The Shouguang population exhibited low level re-sistance to spinosad,abamectin-aminomethyl,imidacloprid and pymetrozine,with a range of 6.99 to 10.83 fold.