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.