油桐根腐病的研究

THE ROOT-ROT OF TUNG-OIL TREE

油桐根腐病在四川桐区严重发生,成片桐林被毁。通过六年的系统研究,对此病危害、症状、病原、病情以及发病规律进行了首次阐述。病原菌定名为油桐腐皮镰孢(Fusarium solani(Mart.) Sacc.f.sp.aleuritidis Chen et Xiao f.sp.nov.)(腐皮镰孢一新专化型)。经大面积的营林生态方法防治,综合控制效果显著。

The root-rot of tung-oil tree (Aleurites fordii Hemsl.) became widespread and caused heavy losses in tung-oil tree production areas of Sichuan province.Results of experiments on this disease for 6 years made clear of symtoms,causal factors and pathogenesis. The pathogenous fungi was been identified to be Fusarium solani (Mart.) Sacc. f. sp. aleuritidis Chen et Xiao f. sp. nov. It is the first reported both in China and abroad.In large scale trials, the efficient way of controling this disease, should integrate the silvicultural, ecological and phytopathological measures.