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上海地区白纹伊蚊监测与药物防制研究 预览 被引量:37

Surveillance on Larva and Adult of Aedes albopictus and the Study of Insecticide in Shanghai
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摘要 目的了解上海地区登革热媒介--白纹伊蚊成幼虫的基本生态习性,掌握白纹伊蚊对常用杀虫剂的敏感性和现场控制效果,为制定登革热应急控制方案提供科学依据.方法幼虫采用3~11月孳生地阳性率调查、人工容器诱卵法与自然界阳性率比较、采集不同水质进行理化分析;成虫采用帐诱法和人工小时法比较白纹伊蚊种群数量动态;用人诱法观察室内外叮咬频率与光照、温度的关系;用幼虫浸液法和模拟现场试验法观察几种杀虫剂的LC50和持效.结果 (1)白纹伊蚊幼虫在自然界出现期为4~11月,6~8月为高峰,人工容器法白纹伊蚊幼虫出现期为5~11月,比自然界晚1个月,幼虫高峰与自然界基本一致;(2)白纹伊蚊幼虫分布十分广泛,郊区高于市区;以轮胎集中堆放处、公园、废品收购、居民区、建筑工地的孳生率较高;幼虫孳生场所以轮胎、缸罐、养花容器、盆桶、瓶等小容器为主.喜欢孳生在pH均值为7.34~7.56、氯化物均值46.43~98.97 mg/L、溶解氧均值3.216 7~3.161 mg/L、亚硝酸盐氮均值0.108~0.043 5 mg/L的水质中;城区与郊区白纹伊蚊孳生与非白纹伊蚊孳生的水体理化指标有所不同;(3)白纹伊蚊成虫出现期为4~11月,成虫高峰为6~8月,两种成虫监测方法捕获的成虫数量以帐诱法>人工小时法;(4)白纹伊蚊成虫在6~9月间,在白天室内外均出现以上午8∶00~10∶00、下午15∶00~16∶00两时段的叮刺高峰,其成虫叮刺活动与光照LUX有关;(5)白纹伊蚊幼虫对DDVP的抗性倍数为42倍,不同地区白纹伊蚊对杀虫剂的LC50有差异,但对两种拟除虫菊酯尚未产生抗性,实验表明0.5~1 ppm甲基嘧啶磷、0.5~1 ppm二嗪农在现场有2~4周的控制效果,0.2~0.8 ppm双硫磷3%沙砾剂在现场有良好的控制白纹伊蚊幼虫效果.结论白纹伊蚊幼虫在自然界出现期为4~11月,人工容器监测幼虫晚1个月出现,成虫出现在4~11月,成 Objective To investigate the breeding habit of Dengue vector- Aedes albopictus and the distribution and the biting behavior of adult and its susceptibility to insecticide in Shanghai. The result is to provide guidance for Dengue control.Methods To collect larva from different areas and container to check the positive rate of larva during April-November and to survey the positive rate of larva during the same time by artificial container; To collect the water which has Aedes albopictus larva or has't Aedes albopictus larva for analysis in lab; To use mosquito net and the personnel hour to collect the adult; To use biting by man to observe the adult biting active related to light and temperature indoor and outdoor; To observe the control effect of several insecticides for Aedes albopictus in Lab and imitate field and field.Results (1) Aedes albopictus larva emerged during April-November in nature,the larva density peak was in June-September, Aedes albopictus larva in artificial container emerged at May, one month later than in nature. (2) The Aedes albopictus larva distribution was extensive, the rate of positive in city was less than that in suburb ( χ 2= 571.01 , P <0.01 ).It distributed in the areas with abound tyres and abolishable goods?park?residential areas and construction field et al. It bred in tyre?jar?vat?bottle and the small container from flower and from house.The Aedes albopictus larva usually breeded in the water which consist of pH 7.34- 7.56 ?chloride 46.43- 98.97 mg/L?dissolved oxygen 3.216 7- 3.161 mg/L and nitrite nitrogen 0.043 5- 0.108 mg/L .(3) The adult emerged in Mary-November, with the density peak during June- September. The adult number with mosquito net was more than that with the personnel hour. (4)During June-September, the peak of biting rate indoor and outdoor were 8∶00- 10∶00 AM and 15∶00-16∶00 PM . The biting active was related with the LUX. (5) The LC 50 of DDVP?deltamthrin?perm
作者 徐仁权 蔡恩茂 徐友祥 王士珍 蒋丽亚 刘丽军 任文军 XU Ren-quan *,CAI En-mao,XU You-xiang,et al. *Shanghai Municipal Center for Disease Control and Prevention,Shanghai 200336,China
出处 《中国媒介生物学及控制杂志》 CAS 2003年第4期 256-260,共5页 Chinese Journal of Vector Biology and Control
关键词 上海地区 白纹伊蚊 监测 药物防制 Aedes albopictus Surveillance Pesticide control
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