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时间:2019-10-13
《沿江稻区几种农药处理的稻田节肢动物群落动态研究》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、安徽农业大学硕士学位论文沿江稻区几种农药处理的稻田节肢动物群落动态研究姓名:李鹏申请学位级别:硕士专业:农业昆虫与害虫防治指导教师:李桂亭20080601月青防效高于毒死脾和阿维•哒嗪硫磷,且对天敌的影响较小,冇利于保护天敌和恢复稻叩天敌对害虫的持续控制作用。甲胺磷对水稻害虫的控制作用最大,但对天敌影响也最大。从对群落特征的影响总体上看,在供试的药剂屮甲维•氟虫睛是防治水稻害虫的最佳药剂,持效期长,且对天敌影响较小。3不同药剂对水稻主要生育期害虫和天敌群落相似性的研究相似性分析结果表明,不同药剂
2、对稻田节肢动物群落特征影响差升很大。施药2周后,以20%甲维•毒死婢处理区与3.5%甲维•氟虫月青处理区最相似,40%毒死卿处理区与16%阿维・哒嗪硫磷处理区较相似,而都与50%甲胺磷处理区差异较大,均由药剂本身属性及对害虫和天敌影响差异所致。关键词:稻叩节肢动物群落结构害虫和天敌化学药剂AbstractnvestigationWritsmadeonthestrueturesofarthropodcommtiesandtiondynamicsofmajorinsectpestsandenemie
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