“信箱”主持人:您好！我是湖北丹江口市园艺场的一名技术员,也是《农村实用技术与信息》的忠实读者。我场是以柑桔为主的国营农场,自今春开始,我场桔园普遍存在着一种病症,特向贵刊求援,以解燃眉之急。我场桔园的病症是:挂果10年左右的春消做为末级梢的桔树,先是叶片变黄、发红,叶脉也呈黄红色,约10天左右,从叶夫开始呈水渍状向叶柄扩 “Mailbox” Moderator: Hello! I am a technician in horticultural market in Danjiangkou, Hubei and a loyal reader of “Practical Technology and Information in Rural Areas”. My field is mainly state-owned citrus farms, since the beginning of this spring, my field orange garden prevalence of a disease, especially to your magazine for help to meet the urgent needs. My field orange garden’s symptoms are: hanging fruiting about 10 years of spring consumption as the last level of the orange trees, the first leaves turn yellow, red, veins also yellow-red, about 10 days, from Ye Fu began to stain Petiole-shaped expansion