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柑桔溃疡病[Xanthomonas citri(Haase)Dowson]是柑桔主要病害之一,列为国际国内检疫对象;柑桔感染病害后常造成早期大量落叶落果,使产量和果品质量大大降低,甚至影响植株生长,引起树势衰退。此病在福州郊区新发展的雪柑园都有不同程度的发生,福桔幼龄树发病较轻,但在空旷地面和江边风口与雪柑混栽的福桔园也感染严重。以往只单纯采取杀菌剂防治,特别是没有在病害流行期适时施药以致收效不大,为此我们于1984年起对此病进行了发病
Citrus canker [Xanthomonas citri (Haase) Dowson] is one of the major diseases of citrus and is listed as the international and domestic quarantine objects. Citrus diseases often cause large quantities of deciduous fruits after decay in the early stage, which greatly reduces the yield and fruit quality, Growth, causing the decline of the tree. The disease in the suburbs of Fuzhou, the new development of snow citrus garden have varying degrees of occurrence, young Citrus aurantium less incidence, but in the open ground and water vents mixed with citrus orange Citrus also infected with serious. In the past, purely fungicides were used for prevention and treatment. In particular, no timely application of pesticides during the epidemic of pests led to little effect. Therefore, we started the disease in 1984