杉木炭疽病的发生规律及防治研究

Study on the Occurrence and Control of Chinese Fir Anthracnose Disease

杉木炭疽病的发生规律及防治研究王军，景河铭，黄定芳关键词杉木炭疽病，发生规律，综合防治杉木炭疽病（ＧｌｏｍｅｙｅｌｌａｃｉｎｇｕＩａｔａ（Ｓｔｏｎｅｍ）Ｓ．ｅｔＳ．］是杉木针叶和嫩梢上的主要病害。受害林分生长停滞，枝枯叶黄，状似火烧，严重时全株枯死，...

Theanthracnose of Chnese fir which infected needles and tender shoots ofthe tree was a serious disease in young stands of 6～10 years old in Wenchuan. The diseasewas caused by Glomerrlla cingulata(Stonem.)S. et S.,and the height and diameter growthof the infected young trees were decreased by 28.6%and 32.1%respectively. The seasonalepidemic began in April,reaching its peak in June when the conditions were most favorablefor the disease development,and gradually ceased in October. Several preventive measurescan be taken before May,including the application of fungicides of Daconil,Mildothane andfertilization along with improved management.The treated trees increased their height anddiameter growth by 38.8%and 23.8%respectively,and totally in 8 years of treatment,10130 m3 of wood,otherwise lost,was regained.