摘要
[目的]通过室内与田间试验,选择防控冬型梨木虱卵的药剂,并确定施药时期。[方法]选择石硫合剂、10%吡丙醚乳油、45%马拉硫磷乳油、30%吡丙·虫螨腈悬浮剂、10%吡丙·吡虫啉悬浮剂、24%螺螨酯悬浮剂6种药剂,采用喷施法检测对冬型梨木虱卵不同发育阶段的杀灭效果,并进行田间试验。[结果]高剂量45%马拉硫磷乳油对卵发育前期防效较好,校正杀卵活性可达77.32%;高剂量10%吡丙醚乳油对中后期的卵杀灭效果较好,校正杀灭率分别达到86.66%、87.18%;石硫合剂对不同发育阶段的冬型梨木虱卵均具有较高的防控效果,其中以前期防控效果最好,5°Be′可达91.14%。[结论]在田间防控时,推荐萌芽前施用石硫合剂进行杀卵,在萌芽后施用10%吡丙醚乳油。
[Aims]This study aims to screen out the agent for prevention and control of the eggs of winter-form pear psylla,and to determine the application period through indoor and field trials.[Methods]6 Kinds of agents,such as lime sulphur,pyriproxyfen,malathion,pyriproxyfen•chlorfenapyr,pyriproxyfen•imidacloprid,and spirotetramat were selected to conduct field trials by spraying method to detect their ovicidal activity at different development stages.[Results]High-concentration malathion indicated a high ovicidal effect at early egg development,with the corrected killing rate of 77.32%;high-concentration pyriproxyfen showed high ovicidal effect at middle and late stages with the corrected killing rate of 86.66,87.18%,respectively;lime sulphur displayed a high control effect on the eggs of winter-form pear psylla at all development stages,at which the control effect of early stage was the best with 5°Béreaching 91.14%.[Conclusions]It is recommended to use lime sulphur to kill eggs before germination and to use pyriproxyfen after germination.
作者
张未仲
赵龙龙
胡增丽
刘朝红
韩凤
ZHNAG Wei-zhong;ZHAO Long-long;HU Zeng-li;LIU Zhao-hong;HAN Feng(Pomology Institute,Shanxi Agricultural University,Jinzhong 030815,Shanxi,China)
出处
《农药》
CAS
CSCD
北大核心
2020年第11期842-845,共4页
Agrochemicals
基金
山西省农业科学院科技创新项目(YCX2020YQ08)&(YCX2018302)
山西省重点研发计划项目(201903D211001-1)。
关键词
梨木虱
杀卵剂
石硫合剂
化学防控
pear psylla
ovicide
lime sulphur
chemical control
作者简介
张未仲(1979-),男,山西太原人,助理研究员,博士,研究方向:果树病虫害防治。E-mail:basketzhong@sina.com;通讯作者:赵龙龙(1984-),男,甘肃庆阳人,副研究员,博士,研究方向:果树病虫害防治。E-mail:xiaoxiaolong007@outlook.com。
