摘要
用美国Ｂａｃｔｉｍｏｓ可湿性粉剂（Ｂｔｉ－１８９７）和国产Ｂｔ－１８７乳剂生产的两种漂浮颗粒剂灭中华按蚊幼虫的结果表明：后者对中华按蚊幼虫的效价（１２０ＩＴＵ／ｍｇ）比前者（３７０ＩＴＵ／ｍｇ）低，但制成颗粒剂后（效价２２０ＩＴＵ／ｍｇ）比前者（效价１３０ＩＴＵ／ｍｇ）高。稻田应用０．８１ｇ／ｍ２剂量Ｂｔ－１８７漂浮颗粒剂控制中华按蚊幼虫，持效可达１６天，Ｂａｃｔｉｍｏｓ漂浮颗粒剂为１３天。
Bt-187 floating granule was made from Bt-187 emulsion(produced by China)and Bactimos(B.t.i-1897) floating granule was made from Bactimos wettable powder(produced by U.S.A).Bioassy showed that titre of the Bt-187 emulsion(120 I.T.U/mg)was lower than that of the Bactimos wettable powder(370 I.T.U/mg).But,titre of the Bt-187 floating granule(220 I.T.U/mg) was higher than that of the Bactimos floating granule(130 I.T.U/mg).Persistence of Bt-187 floating granule in ricefield against An.sinensis larvae was 16 days and that of Bactimos floating granule was 13 days.Therefore,Bt-187 emulsion is more suitable for producing floating granule.
出处
《中国媒介生物学及控制杂志》
CAS
CSCD
1995年第5期334-336,共3页
Chinese Journal of Vector Biology and Control
基金
联合国开发计划署/世界银行/世界卫生组织热带疾病研究训练特别计划资助
