前言橡胶白粉病(Oidium heveae)是橡胶树的主要病害之一。本病自1918年阿伦斯在印尼爪哇发现以来,目前已遍及世界各植胶区。我国橡胶垦区1951年在海南省最早发现此病。卅年来,在海南、广东、广西、云南、福建等省(区)均有发生流行。白粉病为害橡胶树嫩叶、嫩梢和花序。严重时引起落叶、落花,导致胶乳减产,胶果失收。据华南热作研究院观察:病情2级,减产干胶1.9%。3级减产9%。4级减产12.1%。5级 Preface Rubber powdery mildew (Oidium heveae) is one of the major diseases of the rubber tree. The disease since 1918 Ahrens found in Indonesia and Java, the world has now covered all plastic area. China’s rubber reclamation area in 1951 in Hainan Province, the earliest discovered the disease. In recent years, Hainan, Guangdong, Guangxi, Yunnan, Fujian and other provinces (districts) have occurred. Powdery mildew Rubber tree leaves, tender shoots and inflorescences. Severe caused by deciduous, falling flowers, leading to latex production, loss of plastic. According to the South China Institute of hot observation: Condition 2, reduce the dry glue 1.9%. 3 level cut 9%. 4 level 12.1% reduction. 5 levels