紫云英(红花草子)是我省重要的绿肥和饲料作物,每年受到不同程度病虫为害而造成一定的损失。我们姜山区是个传统的草子种产地,病虫为害常威胁着草子种的产量提高。我区紫云英病虫发生的种类较多,但有主次之分,一般地说,常年较严重发生危害的有菌核病、地老虎、潜叶蝇等;随气候变化而暴发的有蚜虫、蓟马、斑点病、白粉病等。有的社队,由于能够掌握这些病虫发生、发展的规律,适时进行防治,大大降低了病虫造成的损失,确保了草子种的高产。如茅东6队,近年都能获得亩产100斤以上的草子 Astragalus (Safflower grass) is an important green manure and feed crops in our province, each year by varying degrees pests and diseases caused by a certain loss. We Jiangshan District is a traditional birthplace of grass, pests and diseases often threaten the grass seed production increased. There are many kinds of diseases occurring in Ziyunying district of our district, but there are main and secondary points. Generally speaking, there are Sclerotinia sclerotiorum, Land tiger and Miner leaf fly which are more serious perennial pests; Aphids, thrips, spot disease, powdery mildew and so on. Some communes and brigades and teams have mastered the regularity of occurrence and development of these diseases and pests and timely controlled them so as to greatly reduce the losses caused by pests and diseases and ensure the high yield of grass seeds. Such as Mao East 6 team, in recent years can get more than 100 pounds per mu yield of grass