论文部分内容阅读
作者于1974～1980年用双硫磷在安大略南部5个都市进行了12次杀灭蚊幼虫试验,其中4个都市蚊孳生地处理面积均在100ha以下(2.5～86ha),使用地面喷洒杀幼虫剂,另一地区应用直升飞机喷雾处理孳生地面积1,320～1,770ha。双硫磷剂型和用量为2%颗粒剂2.8～5.6kg/ha和43%乳剂24ml/ha。重点监测处理坑内残存的幼虫和双硫磷在积雪融化后伊蚊孳生地中的残留状况。用药前和处理后从孳生地收集2或3份水(每份1L),和沉积物1kg,于48小时内送交实验室分析。残药量用气液色层分离法或高压液相色层法进行
The authors conducted 12 kill mosquito larvae tests with 5 teraphosphates in five cities of southern Ontario from 1974 to 1980. Four of the four urban mosquito breeding areas were below 100 ha (2.5-86 ha), ground-sprayed to kill larvae Agent, another area of application of helicopter spray treatment breeding ground area of 1,320 ~ 1,770 ha. The dosage form of the dosage form is 2 ~ 2% granule 2.8 ~ 5.6kg / ha and 43% emulsion 24ml / ha. The focus will be to monitor the residual status of residual larvae and diphtheria in the pit after the snow melts. Two or three servings of water (1 L each) were collected from the breeding grounds prior to and after treatment, and 1 kg of sediment was taken to the laboratory for analysis within 48 hours. The residual amount is determined by gas-liquid chromatography or high-pressure liquid chromatography