通州市蝇类孳生地控制效果评价

Study on Controlling Flies Breeding Place in Tongzhou City

通州市采取控制孳生地的灭蝇措施，苍蝇密度下降了９０．２１％，三类孳生地的苍蝇幼虫孳生率分别下降了９０．８６％、９５．５２％和９１．５０％。

This article reported the control effect of thies breeding place in Tongzhou city and it was made clear that the three kinds of breeding place have been controlled effec- ti vely. The density of flies descended 90. 21 % and the breeding rate of fly maggol separately descended 90. 86%, 95. 525% and 91. 25%