Huanglongbing (HLB) has been a serious threat to the citrus industry worldwide. After its first report in São Paulo State, the main citrus production area in Brazil, the disease spread to the States of Minas Gerais, Paraná and Mato Grosso do Sul. Attempts to cure plants or remiss disease symptoms and damages have been evaluated and showed to be inefficient and nonviable. The development of resistant or tolerant varieties to the bacteria or its insect vector, the Asian citrus psyllid Diaphorina citri , is still a long term challenge. Earlier HLB management has been based on preventive measures such as planting of healthy nursery trees, elimination of diseased trees, and vector control. Supported by both research data and citrus grower experiences, HLB management in São Paulo and Triângulo/Sudoeste Mineiro citrus belt has been improved from measures individually applied only into the orchards to regional disease management, including differentiated psyllid control in the orchards based on tree location and shoot flushing, area-wide coordinated control of psyllids, and removal of inoculum sources in noncommercial properties in the vicinity of commercial orchards. In addition, the negative impact of HLB on orchard production and longevity has been reduced with wide adoption of better cultural practices such as high-density planting, irrigation, and adequate nutrition. Unlike in other countries where HLB reached epidemic levels, the management of HLB in São Paulo and Triângulo/Sudoeste Mineiro citrus belt has been considered a success case and has ensured the maintenance of citrus production and competitiveness of the Brazilian citrus industry while new, more durable, and sustainable measures are not yet available.

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巴西柑橘黄龙病传播及管理策略概述

黄龙病（HLB）已对全球柑橘产业构成严重威胁。在巴西主要柑橘产区圣保罗州首次报告后，该病害蔓延至米纳斯吉拉斯州、巴拉那州和南马托格罗索州。已经对治愈植物或减轻疾病症状和损害的尝试进行了评估，结果表明效率低下且不可行。开发对细菌或其昆虫载体——亚洲柑橘木虱 Diaphorina citri 具有抗性或耐受性的品种仍然是一项长期挑战。早期的 HLB 管理基于预防措施，例如种植健康苗木、消灭病树和病媒控制。在研究数据和柑橘种植者经验的支持下，圣保罗和 Triângulo/Sudoeste Mineiro 柑橘带的 HLB 管理已从仅适用于果园的单独措施改进到区域疾病管理，包括基于树木位置和枝条冲洗的果园区分木虱控制，木虱的区域范围协调控制，以及去除商业果园附近非商业地产中的接种源。此外，随着高密度种植、灌溉和充足营养等更好的文化实践的广泛采用，HLB 对果园生产和寿命的负面影响已经降低。与 HLB 达到流行水平的其他国家不同，