Gray E W, Adler P H, Coscarón-Arias C, Coscarón S, Noblet R
Clemson University, Department of Entomology, SC 29634-0365, USA.
J Am Mosq Control Assoc. 1999 Sep;15(3):400-6.
In response to increasing pest populations of black flies, the government of Argentina initiated a pilot program to evaluate the effectiveness of larval control in the irrigation system of the Negro River Valley, an 18,240-km2 area in Patagonia. The extensive system of irrigation canals, drainage ditches, and natural waterways not only provides water for agriculture and general habitation but also affords habitat for immature black flies. Three species (Simulium bonaerense, Simulium wolffhuegeli, and Simulium nigristrigatum) are primary pests of humans and animals in this area. Trials were conducted using Vectobac AS in representative irrigation canals, a drainage ditch, and a medium-sized river. Most trials resulted in effective larval mortality and insecticide carry. Based on a comparison with 11 black fly suppression programs throughout the world, a suppression program for the Negro River Valley has a projected cost of approximately $1,623,360/year. This study represents the initial steps in development of the 1st areawide black fly suppression program in Argentina.
为应对黑蝇害虫数量的增加，阿根廷政府启动了一项试点项目，以评估在巴塔哥尼亚一个面积为18240平方公里的内格罗河流域灌溉系统中进行幼虫控制的效果。广泛的灌溉渠、排水沟和天然水道系统不仅为农业和一般居住提供水源，也为未成熟的黑蝇提供了栖息地。三种黑蝇（博纳黑蚋、沃尔夫黑蚋和黑纹黑蚋）是该地区人畜的主要害虫。在代表性的灌溉渠、一条排水沟和一条中型河流中使用苏云金芽孢杆菌以色列变种进行了试验。大多数试验都实现了有效的幼虫死亡率和杀虫剂残留。与全球11个黑蝇抑制项目相比，内格罗河流域的抑制项目预计每年成本约为1623360美元。本研究代表了阿根廷首个区域范围黑蝇抑制项目开发的初步步骤。
