2006年雷州半岛鼠疫疫源地预防性灭蚤效果观察

Study on effect of insecticide against fleas in the plague nature foci of domestic mice in Leizhou island

目的探讨应用奋斗呐可湿性粉剂对家鼠鼠疫疫源地滞留喷洒后，对其鼠体蚤及地面游离蚤的灭效。方法将5％的奋斗呐可湿性粉剂配制成1：160浓度的水悬剂型实施地面滞留喷洒，室内外（包括禽畜圈栏）均匀喷洒（80ml／m^2）；墙角、狗窝、鼠洞及有鼠迹的地方重点喷药（150～180ml／m^2）；每户用药量按100g的原药计算。通过灭蚤前后的蚤指数变化情况，调查评估灭效。结果对鼠体蚤的杀灭效果为33．54％，地面游离蚤的灭效为71．39％。结论在现场对鼠体蚤的杀灭效果十分有限，但农村室内外环境卫生的综合治理也很重要。

Objective Study on the control ratios of rodents＇ parasitic flea and ground free flea after resort spraying on the ground in the focus of house mice plague. Methods After diluted the liquid with water （1 ： 160） 5 % Fendona was resort sprayed on the indoor and the outdoor （80 ml/m^2 ） according to per house 100 g the powder, especially on the foot of a wall, the kennel, the holes and traces of rodents（ 150-180 ml/m^2 ）. Through counted control ratios with the indices of rodents＇ parasitic flea and the ground free flea before the application and after the application. Results The control ratios of rodents parasitic flea and ground free flea are 33.54 % and 71.39 % respectively. Conclusion On-the-spot the control ratios of rodents＇ parasitic flea is very limited, but the rural sanitation is key to the question.