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闽北疟疾流行区采用溴氰菊醋大面积灭蚊,取得了显著效果,观察表明溴氰菊酯对媒介按蚊有快速的触杀作用,中华按蚊24h击倒率达100%;缩短了按蚊寿命,灭蚊后21天,中华按蚊预寿命缩短为4.48天;持效效果较佳,灭蚊后4个月嗜人按蚊和中华按蚊的密度仍有明显下降,有效控制了疟疾流行,疟疾年发病率从灭蚊前的56.4/10万降至2.75/10万。但是灭蚊2年后,中华按蚊对溴氰菊酯产生了初步抗性,灭蚊3年后可产生实际抗性,提示使用溴氰菊酯连续2年灭蚊的地区应尽可能停止使用该药,或改用其它杀虫剂灭蚊,以防抗药性发展。
The malaria endemic areas in northern Fujian were treated with a large area of mosquitoes with deltamethrin vinegar and achieved remarkable results. The results showed that deltamethrin had a rapid contact action against An. Mosquito and the knockdown rate of Anopheles sinensis was 100% The life expectancy of mosquitoes was 21 days after mosquito control, and the pre-life expectancy of Anopheles sinensis was shortened to 4.48 days. The persistence effect was better, and the density of Anopheles anthropophagus and Anopheles sinensis remained significantly decreased 4 months after mosquito control, effectively controlling With the malaria epidemic, annual malaria morbidity dropped from 56.4 / 100,000 to 2.75 / 100,000. However, 2 years after the mosquito killing, Anopheles sinensis had preliminary resistance to deltamethrin. After 3 years of mosquito killing, it could produce practical resistance, suggesting that the use of deltamethrin should be stopped as far as possible The drug, or switch to other insecticides mosquitoes to prevent the development of drug resistance.