检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:问锦曾[1,2] 郭建军[1,2] 王音[1,2] 郝文谦 焦和平
机构地区:[1]中国农业科学院植物保护研究所 [2]河北省平山县防蝗植保站
出 处:《植物保护》1997年第4期8-10,共3页Plant Protection
基 金:国家自然科学基金
摘 要:用亚蝗微粒子虫毒饵在室内和田间防治东亚飞蝗的试验结果表明,饵料含孢量约1×1012个/kg,投放量2kg/667m2,于蝗蝻2龄期施用,14d内可获得87.A microbial insecticide Nosema asiaticus, applied in wheat bran bait formulation, were evaluated for control of Locusta migratoria manilensis under lab and field conditions Lab tests with 2nd instar nymphs showed that the rate of 0 6-1 17×10 12 spores per kg bran produced more mortality than that of 0 1-0 3×10 12 spores per kg bran In field tests, bran bait with 1×10 12 spores per kg bran was applied at 30 kg/ha After 48 and 72 hr of application ca 200 nymphs from each plots were caught and reared in cages to examine the effect of tests The best result was obtained from the plot where 90% of nymphs were in the 2nd instar 87 8% mortality was attained within two weeks after bait application
分 类 号:S476.14[农业科学—农业昆虫与害虫防治]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.229