Trapping Hyphantriacunea by the solar insecticide lamp dropping sex pheromone at the same time in South Lake Ecological Park of Tangshan .The survey found solar insecticidal lamp had strong trapping effect on Hyphantriacunea and small effect on natural enemies .Adding sex pheromone can significantly enhance the trapping effect of solar insecticide lamp .

通过对唐山市城市园林柳蓝叶甲的分布危害、形态特征、生物学特性、防治措施进行调查，掌握了其危害水平和发生规律，为有效防治柳蓝叶甲提供研究基础。

The main diseases,insect pests and its severity,host trees were invertigated in South Lake Ecological Park of Tangshan by the method of census and sampling.Thirteen species of trees were seriously affected by diseases and harmful insects.Eleven species of insect pests were inverstigated as main danger in park,including Hlyphantria cunea(Drury),Drosicha contrahens,Leucoptera susinella Herrich-schaffer,Plagiodera versicolora(Laicharting).Seventeen kinds of diseases were seriously happened during the investigation term,including gray spot,anthrax,leaf spot,sooty blotch,wood rot,dry rot,etc.

采用普查的方法,对唐山南湖公园美国白蛾的危害情况和周氏啮小蜂的防治情况进行了调查.调查结果表明:由于挂蛹时间和挂蛹高度差别,使周氏啮小蜂防治美国白蛾效果受到极大影响.建议在加强宣传的同时,选择合适的挂蛹时间和挂蛹高度,以达到最佳的防治效果.

This paper introduces the ways of conducting greening design for the Central Square of cities and towns,according to the discussions on the landscape architecture design of Yutian Central Square,Tangshan city.The design combines the historical culture of Yutian and tries to be in harmony with surroundings, and reaches the ideal effect.

This paper introduced the ways of how to conduct greening design for pedestrian street of cities and towns,ac-cording to the discussions on pedestrian street of Tangshan Zengsheng Road.The design combines the historical culture of Tangshan and tries to be in harmony with surroundings,and reaches the ideal effect.