摘要
目的 :了解青藏公路沿线部分地区蠓科种群组成、数量动态和危害情况。方法 :网捕法。结果 :格尔木、纳赤台和沱沱河有细蠓、库蠓和非吸血蠓分布 ,其中细蠓数量最多 (93 .96% ) ,非吸血蠓次之 (4 .3 8% ) ,库蠓居第 3位(1.66% ) ;随海拔高度的增加 ,细蠓数量递增 ,而库蠓和非吸血蠓减少。危害以沱沱河最为严重 ,从时间分布看 ,上午 10时至晚 2 0时均有细蠓活动 ,并以 14～ 17时密度最高 ;纳赤台危害次之 ,从 10～ 19时均有活动 ,也以细蠓为多 ,在 11～ 13时密度较高 ;在格尔木蠓密度比上述两地为低 ,但从 10～ 2 1时均有细蠓、库蠓和非吸血蠓交替刺叮骚扰。结论 :此次调查为开展有针对性的防制 ,提供了科学依据。
Objective:Studying on population composition,population trends and harm degree of midges in the part district along Qingzang Highway.Methods:Catching midges by waving the net.Results:There were genus Leptoconops, genus Culicoidts and genus non-blood-sucking midges in Ge'ermu,Nachitai and Tuotuohe, Leptoconops was superior in number (93.96%),the second was non-blood-sucking midges and third was Culicoidts. As the increase of elevation, Leptoconops went up in number and non-blood-sucking midges and Culicoidts went down.Tuotuohe was the most serious,and almost all of them were Leptoconops, the activity density was fairly higher from 10∶00 to 20∶00,with the most from 14∶00 to 17∶00;The infestation of Nachitai was the second, and they emerged from 10∶00 to 19∶00,also with Leptoconops as the dominant,higher density at 11∶00-13∶00; The density of midges in Ge'ermu was lower than in Tuotuohe and Nachitai,but from 10∶00 to 21∶00 ,there were Leptoconops,Culicoidts and non-blood-sucking midges to bite and annoy.Conclusion:This investigation has provided the science basis for controlling the midges.
出处
《中国媒介生物学及控制杂志》
CAS
CSCD
2002年第6期445-447,共3页
Chinese Journal of Vector Biology and Control
