柑桔溃疡病是我国南方柑桔园较为常见和较难防治的病害之一,笔者试验用井冈霉素进行防治效果较好,试验是在柑桔溃疡病发病较严重的3～4年生沙田柚幼果园进行,分别于1997年和1998年秋季秋梢长1～3厘米时开始喷第一次药,隔7天喷第二次药,采用200、150、100ppm 浓度分别于1997年8月12日、8月20日各喷一次药,1998年于8月10日、8月18日用上 Citrus canker disease is more common in our country citrus orchard and one of the more difficult to control the disease, the author of Jinggangmycin test control effect is better, the test is more serious in the incidence of citrus canker 3 to 4 years old Shatian pomelo Young orchard, respectively, in 1997 and autumn 1998 autumn shoot length of 1 to 3 cm when the first injection of medicine, spraying the second drug every 7 days, using 200,150,100ppm concentrations were in August 12, 1997 Day, August 20 each spray a drug, 1998 on August 10, August 18 spend