摘要
从肉桂的枯枝组织中分离到３个单孢菌株，经室内外致病性测定和形态鉴定，属可可毛色二孢菌（Ｌａｓｉｏｄｉｐｌｏｄｉａｔｈｅｏｂｒｏｍａｅ），是引致肉桂枝枯病的主要病原。针对这种病菌进行了室内药剂的毒力测定，筛选出５０％林病威ａｃ５００倍液，在幼林地防治效果达９５．８３％。
Three strains developed from single conidium of cinnamon branch-rot have been isolated from the tissues of withered branch. According to the morphology and pathogenicity, Lasiodiplodia theobromae (Pat. ) Griff. & Maubl. is main pathogenic fungus of cinnamon top-branch withered disease. The toxicity of the fungicides to the pathogen were determined. 50% Lin Bing Wei-ac was chosen, it's dilute solution of 500 times had 95. 83%controlling effect on the diseased young treesof Cinnamomum cassia.
关键词
肉桂
枝枯病
防治
药剂
毒力测定
cinnamon
branch-rot
control
fungicide
toxicity determination
