5.病害防治高羊茅草坪广泛种植在过渡地带,现在利用的优质良种不断增加,由于高羊茅非常适应于高温、干旱地区,尤其是在早熟禾不易生存的地带,高羊茅具有抗旱性强、恢复力强、抗病力强,适中的肥力需求。其主要的病害有: ①褐斑病是一种严重而频繁发生的病害,在高羊茅草坪上早期的症状是很小的棕褐色斑环,直径15～30厘米在夏初湿热的 5. Disease Prevention and Control Tall fescue lawn is widely planted in the transitional zone, and now the use of high quality seeds is increasing. Because tall fescue is very suitable for high temperature and arid areas, especially in the poorer areas of bluegrass, tall fescue has drought resistance Strong, resilient, strong disease resistance, moderate fertility needs. Its main diseases are: brown spot is a serious and frequent disease in the early fescue lawn is a small sepals of small brown rings, 15-30 cm in diameter in early summer damp