中华蚊母新病害鉴定及防治技术研究

Study on Controlling Technology and Identification of New Disease of Distylium chinese

运用柯赫氏法则对中华蚊母上发生的一种病害进行了验证,并在室内培养基上测试了4种常用杀菌剂(75%百菌清WP、80%多菌灵WP、70%代森锰锌WP和250g/L阿米西达)对该病原菌的抑菌效果。结果表明:该病害为中华蚊母叶部的一种新病害;初步定为中华蚊母炭疽病,病原菌为半知菌亚门刺盘孢属的胶孢炭疽菌(Colletotrichum gloeosporioids)。4种杀菌剂中,以75%百菌清WP抑菌效果最好,80%多菌灵WP和250g/L阿米西达次之,70%代森锰锌WP最差。

A disease occurred in Distylium chinese was verified with Koch＇ Rules,and in vitro inhibiting effects of 4 commonly used fungicides including 75% chlorothalonil WP,80% carbendazim WP,70% mancozeb WP and 250 g/L amistar were studied.The results showed that the disease was a new disease occurred in the leaves of Distylium chinese and it was preliminarily named Distylium chinese anthracnose caused by the pathogen Colletotrichum gloeosporioides.Among the 4 fungicides,inhibiting effect of 75% chlorothalonil WP was the best,followed by 80% carbendazim WP and 250 g/L amistar,and 70% mancozeb WP was the worst.