猪殃殃Galium aparine L.var.tenerum(Gren.etGodr.)Rchb.是我省麦田恶性杂草。近几年来,由于多种原因,其发生面积和发生量均有上升。据江宁县调查汇总:1983年该县猪殃殃发生达到防治指标的而积,占三麦面积的24.6％,1984年上升到39.5％。1984至1985年其他市、县调查猪殃殃达防治指标面积占三麦面积的百分数:盐城市郊区为45.7％, Galium aparine L.var.tenerum (Gren.etGodr.) Rchb. Is a malignant weed in wheat field in our province. In recent years, due to a variety of reasons, its occurrence area and occurrence have increased. According to the survey of Jiangning County: In 1983, the county pig apocalypse occurred to control indicators and plot, accounting for 24.6% of three wheat area, rose to 39.5% in 1984. Other cities and counties surveyed from 1984 to 1985 calafate caladium disease control indicators area accounted for the percentage of three wheat area: 45.7% in Yancheng suburbs,