论文部分内容阅读
用溴氰菊酯25mga．i／m2和二氯苯醚菊酯500mga．i／m2浸泡两种孔形的棉纺纱大网孔窗帘布．方形孔径为4×4mm和4×7mm，圆形孔径为4×5mm。药帘横贴在试验笼的通道笼与诱饵笼之间，然后放进实验室饲养的大劣按蚊，观察其行为反应和药效作用。结果，两种药浸泡帘布后30－385天12次试验，大劣按蚊平均死亡率为94％以上，最后一次试验死亡率为84％以上。大劣按蚊吸血率对照笼为75％，实验笼溴氰菊酯为5．5％，二氯苯醚菊酯为9．4％。校正防止吸血率分别为92．8％和88．0％（P＞0．05）。两种孔形的帘布浸药后对大劣按蚊均具良好的防护作用，可在现场应用。
With deltamethrin 25mga. i / m2 and permethrin 500 mga. i / m2 soak two kinds of hole-shaped cotton yarn mesh curtain fabric. Square aperture of 4 × 4mm and 4 × 7mm, circular aperture of 4 × 5mm. The curtain was placed between the cage of the experimental cage and the bait cage, and then put into the Anopheles dirus which was kept in the laboratory to observe its behavioral response and efficacy. As a result, 12 trials 30-385 days after the two drug-soaked drapes, the average mortality rate of Anopheles dirus was more than 94%, and the mortality rate of the last test was 84% or more. Anopheles dirus was 75% of control cage, deltapermethrin 5.5% and permethrin 9.4%. The corrected rate of prevention of aspiration was 92.8% and 88.0%, respectively (P> 0.05). Two kinds of hole-shaped cord after immersion on the Anopheles sinensis have a good protective effect can be applied in the field.