沅江市位于湖南省东北部,洞庭湖西南,拥有近50万亩的洞庭湖湖洲,是湖南省主要芦、荻生产基地。湖洲苇田的芦、荻多是自然繁衍,由于疏于人工管理,经营粗放,杂草危害已成为苇田退化、芦荻产量下降的主要原因。笔者于1993年4月对该市湖洲苇田春季杂草的发生及危害状况作了调查。结果显示,在春季侵入苇田危害芦、荻的杂草中,恶性杂草鸡矢藤和中华苔草发生量大,危害严重,造成芦、荻产量明显下降,亟待采取措施进行治 Yuanjiang City is located in the northeast of Hunan Province, southwest of Dongting Lake, with nearly 500,000 mu of Dongting Lake lakes, Hunan Province is the main production base of Lu, Di. Reed fields in Lake Reed, Di is a natural multiplication, due to neglect of manual management, extensive management, weed harm has become the reed field degradation, the main reason for the decline of reed production. In April 1993, the author investigated the occurrence of spring weeds and their damage in reed fields in Huzhou. The results showed that among the weeds infested by reed field in spring, the incidence of malignant weeds, Artemisia scoparia and Carex lasiocephala was large and serious, resulting in a significant decrease in the yield of asparagus and diurnal, and the urgent need to take measures to cure