Kaul S M, Sharma R S, Borgohain B K
National Institute of Communicable Diseases, Delhi, India.
J Commun Dis. 1994 Jun;26(2):100-2.
S. shorttii, a common phlebotomine sandfly species of Assam, was tested for susceptibility to commonly used insecticides, D.D.T., malathion and Fenitrothion in Kamrup district, Assam. Tests carried out by WHO test kits showed 100 per cent mortalities against discriminating concentrations of malathion (5 per cent) and Fenitrothion (1 per cent). With D.D.T., in 1 hr. exposure mortalities recorded were 54.5 and 64.4 per cent, whereas in 24 hr. exposure mortalities were 75 per cent and 90 per cent. The area has been under continuous D.D.T. spraying since the beginning of NMEP in 1958, and high selection pressure appears to have precipitated D.D.T. resistance in this partly exophilic species.
短须白蛉是阿萨姆邦常见的吸血白蛉物种，在阿萨姆邦卡姆鲁普地区对其进行了常用杀虫剂滴滴涕、马拉硫磷和杀螟硫磷的敏感性测试。使用世卫组织测试试剂盒进行的测试表明，在马拉硫磷（5%）和杀螟硫磷（1%）的鉴别浓度下死亡率为100%。使用滴滴涕时，暴露1小时记录的死亡率分别为54.5%和64.4%，而暴露24小时的死亡率分别为75%和90%。自1958年全国疟疾根除计划开始以来，该地区一直在持续喷洒滴滴涕，高选择压力似乎促使这种部分嗜外性物种产生了滴滴涕抗性。
