不同区域优势草坪杂草及其防除

不同地区草坪优势杂草的种类不尽相同，禾本科、菊科、莎草科、苋科、大戟科、蓼科、豆科和石竹科等8个科的杂草种类和发生数量最多，约占杂草总数的60％-70％。其巾，空心莲子草、马唐、狗牙根、三叶草、天胡荽、香附子、牛筋草、白茅、水蜈蚣、酢浆草等10种杂草为草坪上的恶性杂草，对草坪危害最大。采取草坪修剪养护、化学防除和人工拔除相结合的综合治理方法是防除草坪杂草的有效方法。

Populations of lawn weeds in different area and their control

The distribution and harm of species of dominant weeds of lawn vary with different area, and the most harmful weeds belong 8 families, which were Poaceae, Asteraceae, Cyperaceae, Amaranthaceae, Euphorbiaceae, Polygonaceae, Fabaceae and Caryophyllaceae, about accounted for from sixty percent to seventy percent in all weeds in lawn. The malignant weeds in lawn were Alternanthera philoxeroides, Digitaria sanguinalli, Cynodon dactylon, Trifolium pretense, Hydroctyle sibthorpiodes, Cyperus rotundus, Eleusine indica, Imperata cylindrical, Kyllinga brevifolia and Oxalis corniculata. The integrated management method which combined mowing lawns, chemical control with pulling weeds by hand should be the most efficient control method.