PYRETHROID-TREATED BEDNET EFFECTS ON MOSQUITOS OF THE ANOPHELES-GAMBIAE COMPLEX IN THE GAMBIA
PYRETHROID-TREATED BEDNET EFFECTS ON MOSQUITOS OF THE ANOPHELES-GAMBIAE COMPLEX IN THE GAMBIA
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DOI：
10.1111/j.1365-2915.1991.tb00576.x
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发表时间：
1991-10-01
影响因子：
1.9
通讯作者：
ARMSTRONG, JRM
中科院分区：
文献类型：
--
作者：
LINDSAY, SW;ADIAMAH, JH;ARMSTRONG, JRM
冈比亚按蚊复合蚊的反应，男人睡在浸过杀虫剂或未经处理的蚊帐在6个阳台陷阱小屋在冈比亚旱季进行了研究。 有了这种小屋，就有可能收集室内休息的活的和死的蚊子，并估计每天晚上进入、吸血和离开的野生蚊子的数量。 用乳剂处理蚊帐，目标是留下25 mg/m2氯氟氰菊酯或5、50或500 mg/m2氯菊酯的沉积物，这些乳剂由乳油（EC）稀释，或类似于EC的空白制剂，只是省略了氯菊酯;第六张蚊帐不处理。 在不同的夜晚，蚊帐和枕木在小屋之间轮换，设计基于一系列拉丁方块，并进行双盲试验。 灭效与氯菊酯的用量成正比。 该效应也是由空白制剂引起的，因此归因于制剂的其他组分，而不是氯菊酯本身。 每平方米浸有500毫克氯菊酯的蚊帐提供了最佳的个人保护，与未经处理的蚊帐相比，蚊子吸血减少了91%。 然而，在相同的剂量下，氯氟氰菊酯比氯菊酯具有更大的杀虫性。 在研究的现阶段，对于社区保护来说，化学威慑还是杀死疟疾病媒更好仍然是一个问题。
The response of Anopheles gambiae complex mosquitoes to men sleeping under insecticide-impregnated or untreated bednets in six verandah trap huts was studied during the dry season in The Gambia. With this type of hut it was possible to collect live and dead indoor-resting mosquitoes and estimate the number of wild mosquitoes which entered, bloodfed on man, and exited each night. Bednets were treated with emulsions targetted to leave deposits of 25 mg/m2 lambda-cyhalothrin, or 5, 50 or 500 mg/m2 permethrin, diluted from emulsifiable concentrates (EC), or a blank formulation similar to the EC except that the permethrin was omitted; the sixth net was left untreated. Nets and sleepers were rotated between huts on different nights, the design being based on a series of Latin squares and conducted double-blind.Permethrin-impregnated bednets deterred mosquitoes from entering the huts. The degree of deterrency was proportional to the dosage of permethrin. This effect was also caused by the blank formulation and therefore attributed to other components of the formulation, rather than to the permethrin itself. The net impregnated with 500 mg permethrin per square metre gave the best individual protection, reducing mosquito bloodfeeding by 91% compared with untreated nets. However, lambda-cyhalothrin was proportionately more insecticidal than permethrin at doses of equivalent deterrency. At this stage of research, it remains conjectural whether chemical deterrency or killing of malaria vectors is better for community protection.