条溃疡是橡胶树的一种重要割面病害。据研究,本病与季风性落叶病属同一病原—疫霉菌。疫霉菌以其孢子囊和游动孢子通过新割刀痕侵入割口,在树皮内部扩展蔓延,造成树皮溃烂,病菌的主要来源有地面带菌土壤和树冠染病组织(季风性落叶病、染病胶果和嫩枝以及枝干溃疡病灶)。病菌的传 Ulcers are an important cut disease in rubber trees. According to the study, the disease and monsoon deciduous disease are the same pathogen - Phytophthora. Phytophthora capsici and zoospores invade the cut through new cutting marks and spread inside the bark, resulting in bark ulceration. The main sources of pathogens are soil-borne soils and crown-infected tissues (monsoon deciduous disease, disease Gums and shoots, and branch and ulcer lesions). Pathogen transmission