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柑桔溃疡病是柑桔的危险性病害之一,柑桔植株受害后,叶片、果实易早落,树势衰弱,减少产量和影响果品价值。苗木和幼树受害叶片脱落、生长受阻,严重时叶片落光,枝干枯死。近年来,柑桔溃疡病已成为发展甜橙生产的一大障碍。笔者通过深入生产单位调查和病害防治实践,认为今后发展甜橙要从培育无病苗做起,防止柑桔溃疡病传入苗圃和果园。当新的果园防疫失败发生病害时,要及时采取以消灭病原为目标的综合措施、控制病害传播进而消灭病害。
Citrus canker is one of the dangerous diseases of citrus. After the citrus plant is damaged, the leaves and fruits are easy to fall early, the tree is weak, the output is reduced and the fruit value is affected. The leaves of seedlings and saplings fall off, the growth is blocked, and the leaves fall light and the branches die. In recent years, citrus canker disease has become a major obstacle to the development of sweet orange production. Through in-depth investigation of production units and disease prevention and control practices, the author believes that the future development of sweet orange should start from cultivating disease-free seedlings and prevent the introduction of citrus canker disease into nurseries and orchards. When the new orchard disease prevention failure, it is necessary to take prompt measures to eliminate the pathogen as the goal of comprehensive measures to control disease spread and then eliminate the disease.