泡桐炭疽病主要为害苗木的幼嫩组织,包括叶、叶柄、顶梢等。为害轻者造成泡桐停止生长;为害重者死苗率可达70%~80%。本文介绍了泡桐炭疽病的发生与防治,仅供广大林农参考。1发病症状叶上斑点近圆形、褐色、直径约1 mm,斑周围黄绿色。嫩茎、叶柄和叶脉上的病斑椭圆形、褐色,微凹陷,长1~2 mm;在潮湿情况下斑内生粉红色分生孢子堆。2病原泡桐刺盘孢菌属半知菌类、丛梗孢 Paulownia anthracnose seedlings mainly young tissue damage, including leaves, petioles, top and so on. Caused by the light of Paulownia to stop the growth of light; dead weight of more than 70% to 80%. This article describes the occurrence and control of Paulownia anthracnose, for the general forest farmers reference. 1 symptoms of the leaves of the spot is nearly round, brown, about 1 mm in diameter, yellowish green around the spot. Lesions on tender stems, petioles and veins oval, brown, slightly depressed, 1-2 mm in length; spotted pink conidia in wet conditions. 2 Pathogen Paulownia Alternaria Sporotrichosis semi-known bacteria, Conglui spore