柑桔苗疫病近年在广州地区柑桔苗圃普遍发生,1985—1987年连续3年暴发流行,成为柑桔育苗的一大障碍。在此期间,我们对该病的发生流行进行了调查和药剂防治试验。现将结果简报如下。 一、为害症状及病情 此病为害幼苗的茎、枝梢及叶片,幼嫩部分受 Citrus disease in recent years in Guangzhou citrus nursery occurred in general, 1985-1987 outbreaks epidemic for three consecutive years, becoming a major obstacle citrus nursery. During this period, we conducted a survey on the occurrence of the disease and drug control trials. The result is now as follows. First, the damage symptoms and disease The disease-affected seedlings stems, shoots and leaves, young part by