鸡矢藤Paederia scandens (lour) Merr是芦苇的恶性杂草。它不仅与芦苇争光争肥,缠绕芦苇,影响芦苇的正常生长,而且由于其攀援茎难与芦苇分离混入芦苇中,影响造纸质量。该草适合于阴湿环境,种子和茎都能发芽繁殖,生长能力很强,在湖北、湖南等省份的沿长江和洞庭湖芦苇生长地区分布很广,为害很大。以前单用二甲四氯或2.4—D丁酯防除和人工摘藤,效果很差。笔者从1987年开始试验用百 Paederia scandens (lour) Merr is a vicious weed of reeds. It not only competed with the reed for fertilizer, wound reeds, affecting the normal growth of reed, and because of its difficult to climb stems and reeds separated into reeds, affecting paper quality. The grass suitable for damp environment, seeds and stems can germinate and reproduce, growth ability is strong, in Hubei, Hunan and other provinces along the Yangtze River and Dongting Lake reed growth area is widely distributed, a great deal of damage. Previously alone with dimethyl tetrachloride or 2.4-D butyl control and artificial rattan, the effect is poor. The author started experimenting with hundreds in 1987