Zaim M, Ladonni H, Ershadi M R, Manouchehri A V, Sahabi Z, Nazari M, Shahmohammadi H
Department of Medical Entomology, School of Public Health, Teheran, Iran.
J Am Mosq Control Assoc. 1988 Sep;4(3):351-5.
The efficacy of the parasitic nematode Romanomermis culcivorax in controlling anopheline larvae, including malaria vectors, was studied in Fars and Baluchistan provinces. Twenty sites were treated once with the preparastic stage of R. culicivorax in 1984 with 3,000, 5,000 or 10,000 preparasites per m2 surface area, depending on larval density. The average parasitism of anopheline larvae ranged from 56 to 69% based on 24 hr posttreatment dissections. No correlation was found between the level of parasitism and the density of mosquito larvae present in a site. About 61% parasitism was obtained when different rates of preparasites were released in 14 larval breeding sites in 1985. No apparent difference was observed in the rate of parasitism in 10 sites receiving one treatment compared with four sites receiving two treatments, with a seven day interval between each treatment. Romanomermis culcivorax was established in the release sites but caused only minor reductions in anopheline larval populations. The nematode would be of limited use in antimalaria campaigns in southern Iran.
在法尔斯省和俾路支省研究了寄生线虫库蚊类索线虫在控制按蚊幼虫（包括疟疾媒介）方面的效果。1984年，根据幼虫密度，在20个地点用库蚊类索线虫的寄生前期对每平方米表面积分别投放3000、5000或10000个寄生前期幼虫进行了一次处理。根据处理后24小时解剖结果，按蚊幼虫的平均寄生率在56%至69%之间。未发现寄生水平与某一地点存在的蚊虫幼虫密度之间存在相关性。1985年，在14个幼虫孳生地以不同比例投放寄生前期幼虫，获得了约61%的寄生率。在接受一次处理的10个地点与接受两次处理（每次处理间隔7天）的4个地点之间，未观察到寄生率有明显差异。库蚊类索线虫在投放地点定殖，但仅使按蚊幼虫数量略有减少。这种线虫在伊朗南部的抗疟运动中作用有限。
