溃疡病是柑桔上一种重要的细菌性病害,是检疫对象。植株被害后轻者枝、叶、果发生病斑,降低果实品质;重者引起落叶,落果、枯枝,使产量减少。该病遍布我省主要柑桔产区,尤以甜橙为害更重,是今后发展甜橙生产上急待解决的重大问题。我所在引种柑桔栽培试验中发现有此病,甜橙类受害很严重。以往我们曾采用修剪病枝、病叶,喷波尔多液保护剂等措施进行防治,但效果均不理想。1973年开展柑桔溃疡病的发病规律观察和药剂防治试验,其中以敌枯双防治效果最好,现将试验结果初报如下,以供参考。 Canker is an important bacterial disease on citrus and is the quarantine object. Plants were killed after light branches, leaves, fruit lesions occur, reducing fruit quality; heavy cause deciduous, deciduous, dead branches, so that reduced production. The disease all over the province’s major citrus producing areas, especially oranges heavier damage, is the future development of orange production on the urgent solution to major issues. My introduction of citrus cultivation test found that the disease, sweet orange is very serious. In the past, we used to cut the diseased branches, diseased leaves, spray Bordeaux mixture of protective agents and other measures to prevent and cure, but the effect is not satisfactory. In 1973 the incidence of citrus canker disease observation and prevention and treatment of pesticide trials, of which the enemy dwarf dual prevention and control is the best, the test results are as follows, for reference.