Chines Journal of Vector Biology and Control

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Seasonal Fluctuation of Chigger mite in ZhanJiang

Mo Guanying;Zhao Shanxian   

  1. ZhanJiang Institute of Anti-plague,Guang dong provice,PRC.
  • Online:1991-06-20 Published:1991-06-20

湛江市恙螨季节消长调查研究

莫冠英; 赵善贤   

  1. 广东省湛江鼠疫防治研究所 湛江市524037; 广东省卫生防疫站

Abstract: The present paper reports the seasonal fluctuation and population situation of chigger mite in Zhanjing in 1987. 266 speciments were collected in the locality, belonging to 6 species of rodent, were examined. On an average rate of mite infested rodents was 47.37%, on an average index of mlte infested rodents was 100.2, in which the highest was in June, 87%. The average index of mite infested rodents was 100.2, the maximum in May 278. In this area, the peak of activity period of mite was between Spring and Summar. Ⅱ speciies of chigger mite were identified, and classified by making smears partly, belonging to 1 family 2 subfamilies, 7 genera, in which Leptotromoidinm deliense and Gaehrliepia(Gateria)Yangchenensis wet found in every month of the whole of year. The results obtained show that the geographical landscape and the number of rodent and insect population in Leizhou peninsula provide natunal foci conservative conditions for Tsutsugamushi disease, which has been transmitted from rodent tO rodent for a long time, so must be paid more. attention to taking measures to prevent the disease happrning in future.

摘要: 本文对1987年湛江市恙螨季节消长和种群状况提出报告。该项调查共检查当地六个鼠种266只,总平均染螨率47.37%,以6月份最高(87%);鼠螨指数平均100.2,以5月份最高(278)。该地区恙螨活动高峰期是春夏之间。部分标本经鉴定,隶属1科2亚科7属11种,其中地里纤恙螨和羊城甲逦螨全年各月都有发现。结果表明,雷州半岛的地理景观和动物昆虫种群数量,具备恙虫病自然疫源地保存条件,致使其长期在鼠间传播,应采取措施防止恙虫病的发生。

关键词: 宿主动物, 恙螨, 消长