高原羊狂蝇成蝇飞翔规律的观察及防治时间的确定

Research on Flying and Control Time of Oestrus in Plateau

本文对我省黄河谷地的贵德县和高原腹地的玉树县两个不同海拔、气候地区对羊狂蝇成蝇出现及消失的时间进行了观察,结果表明:青海高原不同海拔地区羊鼻蝇飞翔(产虫)期均在每年的7月中下旬,差别只是较寒冷的高海拔地区产卵期出现较晚。依据这一成蝇飞翔产虫的活动规律,我们认为9月上旬是驱虫防治的最佳期。

Time of occurrence and disappearance of oestrus were studied in Guide county and Yushu county,where is different altitude and climate. The resulted showed that date of flying （laying eggs ） of Oestrus in different altitude region of Qinghai flving nattem and province was in late July. But in cold, high - altitude region, date of laying eggs appear late. Based on lavinz eggs of adult oestrus, optimun date for deworming is in earlv september.