福建省茶小绿叶蝉抗药性的地区差异

The Regional Diversity of Resistance of Tea Green Leafhopper,Empoasca vitis(Gthe),to Insecticides in Fujian Province

采用浸梢法测定茶小绿叶蝉对8种杀虫剂的相对敏感基线,福建省不同地区茶小绿叶蝉对5种杀虫剂的药剂敏感性水平。结果表明,联苯菊酯、溴虫腈、三氟氯氰菊酯、吡虫啉、高效氯氰菊酯、啶虫脒、噻嗪酮、杀螟丹等药剂对小绿叶蝉均有较高的毒力,不同地区小绿叶蝉对药剂的抗性水平不同。福安茶场的小绿叶蝉种群对联苯菊酯、啶虫脒已经产生了高抗水平,抗性倍数分别达44.1和97.4倍,对吡虫啉达中抗水平,抗性倍数为11.8倍;北峰茶场的小绿叶蝉种群对杀螟丹的抗性水平为中抗,抗性倍数为16.4倍;武夷山茶场的小绿叶蝉种群对啶虫脒已经产生了高抗水平,抗性倍数为52.3倍。不同茶场的小绿叶蝉种群对溴虫腈表现敏感。

The relative susceptible toxicity baseline of the tea green leafhopper, Empoasca vitis （GOthe） to 8 insecticides were tested in this study. Also, the regional diversity of resisitance to 5 insecticides in Fujian Province was analyzed by the tea tip-dipping method. The results showed high toxicities to the tea green leafhopper of 8 insecticides, including Bifenthrin, Chlorfenapyr, Cyhalothrin, Imidacloprid, Beta-cypermethrin, Acetamiprid, Buprofezin and Cartap. Different resistance levels were found in the different sites. Higher resistance level was observed in Fuan population to Bifenthrin and Acetamiprid. The resistance indexes were 44.1 and 97.4 times, respectively. The resistance index to Imidacloprid was 11.8 times. The Beifeng population showed a middle-level resistance to Cartap and the resistance index was 16.4 times. The Wuyi mountain population showed a high-level resistance to Acetamiprid and the resistance index was 52.3 times. The tea green leafhopper collected from different sites displayed different sensitive to Chlorfenapyr.