张掖市草坪杂草调查与防除试验

Investigation of Lawn Weed and Control Test in Zhangye City

草坪杂草影响草坪美观,传播病虫害,缩短草坪寿命。采取定期定点调查与随机普查相结合的方法研究了张掖市玉水苑景区草坪杂草,并开展了杂草防除技术试验。结果表明,张掖市常见草坪杂草有36种,隶属于18个科,常见杂草有赖草、狗尾草、独行菜、反枝苋、藜,其中恶性杂草有芦苇、萹蓄和反枝苋,4~6月为发生高峰期;封杂、除尖、圆消、咏淇、水莎净、禾阔双锄、禾立净、三叶净8种除草剂均能有效防除张掖市草坪杂草,其中圆消和禾阔双锄对早熟禾、高羊茅和黑麦草3类草坪效果最好,禾立净和三叶净对三叶草草坪效果最好,4~6月进行草坪喷雾防除。

Lawn weeds affect lawn beauty,spread diseases and insect pests,shorten the lawn life.Regular spot survey and random census were used to study lawn weeds in the Yushuiyuan scenic spot of Zhangye city.The study found that there are 36 species of weeds belonging to 18 families.Common weed include Leymus secalinus,Setaria viridis,Lepidium apetalum,Amaranthus retroflexus,Chenopodium album,Malignant weeds mainly include Phragmites australis,Polygonum aviculare and Amaranthus retroflexus,the peak season is from April to June;8 herbicides can effectively control grass in Zhangye city,respectively is‘Fengzai’,‘Chujian’,‘Yuanxiao’‘,Yongqi’‘,Shuishajing’,‘Hekuoshuangchu’,‘Helijing’,‘Sanyejing’,among them,‘Yuanxiao’and‘Hekuoshuangchu’has the best effect on three kinds of lawns:Poa pratensis,Festuca elata,Lolium perenne,‘Helijing’and‘Sanyejing’has the best effect on Galium odoratum lawns,lawn spray should be used from April to June for weed control.