哒螨灵对茶小绿叶蝉活性和田间应用效果
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摘要
[目的]评价哒螨灵防治茶小绿叶蝉的活性及其田间应用效果。[方法]利用浸渍法分别测定哒螨灵等药剂对茶小绿叶蝉2龄若虫、4龄若虫活性,并采用15%哒螨灵EW 20、30、40 mg/L,10%联苯菊酯EW 30 mg/L药液喷雾进行大田对比试验。[结果]哒螨灵对茶小绿叶蝉4龄若虫的毒力与联苯菊酯的毒力相当,明显高于高效氯氰菊酯、吡虫啉、啶虫脒等的毒力。2龄若虫对哒螨灵的敏感性是4龄的2.78倍,5龄敏感性比4龄略有降低;15%哒螨灵EW质量浓度为30、40 mg/L,10%联苯菊酯EW质量浓度30 mg/L田间喷雾防治茶小绿叶蝉,防效达到85%以上的持效期分别可达14、7 d。[结论]哒螨灵对茶小绿叶蝉有较高的活性,可作为茶区防治茶小绿叶蝉的轮换、交替用药品种。
[Aims] This study aims to evaluate the bioactivity and field efficacy of pyridaben against tea green leafhopper(Empoasca pirisuga Matumura). [Methods] The bioactivity of some pesticides including pyridaben against the 2th, 4th instar nymph of tea green leafhopper were tested by Impregnation method, and the field efficacy trials at 20,30, 40 mg/L of pyridaben 15% EW and 30 mg/L of bifenthrin 10% EW were also carried out. [Results] The bioactivity of pyridaben against the 4th instar nymph of tea green leafhopper was nearly equal to that of bifenthrin, and significantly higher than that of cypermethrin, imidacloprid, acetamiprid and so on. The sensibility of the 2th instar nymph of tea green leafhopper to pyridaben is 2.78 times as much as the 4th instar nymph, the sensibility of the 5th instar nymph is slightly lower than that of the 4th instar nymph. Pyridaben 15% EW and 30 mg/L of bifenthrin 10% EW showed good field efficacy at 30, 40 mg/L, and the control effect is over 85% after 14 days and 7 days respectively.[Conclusons] Pyridaben has higher bioactivity against tea green leafhopper, and it can be used as a rotation or alternate pesticide to control tea green leafhopper.
[Aims] This study aims to evaluate the bioactivity and field efficacy of pyridaben against tea green leafhopper(Empoasca pirisuga Matumura). [Methods] The bioactivity of some pesticides including pyridaben against the 2th, 4th instar nymph of tea green leafhopper were tested by Impregnation method, and the field efficacy trials at 20,30, 40 mg/L of pyridaben 15% EW and 30 mg/L of bifenthrin 10% EW were also carried out. [Results] The bioactivity of pyridaben against the 4th instar nymph of tea green leafhopper was nearly equal to that of bifenthrin, and significantly higher than that of cypermethrin, imidacloprid, acetamiprid and so on. The sensibility of the 2th instar nymph of tea green leafhopper to pyridaben is 2.78 times as much as the 4th instar nymph, the sensibility of the 5th instar nymph is slightly lower than that of the 4th instar nymph. Pyridaben 15% EW and 30 mg/L of bifenthrin 10% EW showed good field efficacy at 30, 40 mg/L, and the control effect is over 85% after 14 days and 7 days respectively.[Conclusons] Pyridaben has higher bioactivity against tea green leafhopper, and it can be used as a rotation or alternate pesticide to control tea green leafhopper.
引文
[1]农业部农药检定所.新编农药手册(续集)[M].北京:中国农业出版社,1998.
[2]胡绍海,胡卫军,胡卫东,等.复方茶皂素对哒螨灵杀灭桔全爪螨的增效作用[J].植物保护学报,1997,24(1):65-69.
[3]任学祥,王开运,左一鸣,等.哒螨灵对三种害虫的毒力比较及其应用潜力评价[J].植物保护学报,2011,38(1):65-70.
[4]任学祥,王开运,王杰,等.哒螨灵、吡蚜酮对B型烟粉虱的毒力测定和药效试验[J].中国烟草学报,2011,l7(1):72-76.
[5]中华人民共和国农业部.NY/T 1154.6—2006.农药室内生物测定试验准则.杀虫剂第6部分:杀虫活性试验-浸虫法[S].北京:中国农业出版社,2006.
[6]中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会.GB-T 17980.56—2004.农药田间药效试验准则(二)第56部分:杀虫剂防治茶树叶蝉[S].中国农业出版社,2004.
[7]庄家祥,傅建炜,苏庆泉,等.福建省茶小绿叶蝉抗药性的地区差异[J].茶叶科学,2010,29(2):154-158.
[8]文兆明,韦静峰,彭友兵,等.几种植物源杀虫剂防治茶小绿叶蝉效果比较试验[J].中国农学通报,2008,24(1):379-383.
[9]吴顺章,林继红,林德锋,等.防治茶小绿叶蝉的药剂筛选初探[J].茶叶科学技术,2006(4):17-19.
[2]胡绍海,胡卫军,胡卫东,等.复方茶皂素对哒螨灵杀灭桔全爪螨的增效作用[J].植物保护学报,1997,24(1):65-69.
[3]任学祥,王开运,左一鸣,等.哒螨灵对三种害虫的毒力比较及其应用潜力评价[J].植物保护学报,2011,38(1):65-70.
[4]任学祥,王开运,王杰,等.哒螨灵、吡蚜酮对B型烟粉虱的毒力测定和药效试验[J].中国烟草学报,2011,l7(1):72-76.
[5]中华人民共和国农业部.NY/T 1154.6—2006.农药室内生物测定试验准则.杀虫剂第6部分:杀虫活性试验-浸虫法[S].北京:中国农业出版社,2006.
[6]中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会.GB-T 17980.56—2004.农药田间药效试验准则(二)第56部分:杀虫剂防治茶树叶蝉[S].中国农业出版社,2004.
[7]庄家祥,傅建炜,苏庆泉,等.福建省茶小绿叶蝉抗药性的地区差异[J].茶叶科学,2010,29(2):154-158.
[8]文兆明,韦静峰,彭友兵,等.几种植物源杀虫剂防治茶小绿叶蝉效果比较试验[J].中国农学通报,2008,24(1):379-383.
[9]吴顺章,林继红,林德锋,等.防治茶小绿叶蝉的药剂筛选初探[J].茶叶科学技术,2006(4):17-19.