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近年我乡部分柚园由于管理不善,膏药病发生严重,发病株率高达100％,严重影响树势,已有部分枝条枯死。笔者1991年11月中旬选用食盐:生石灰:70％甲基托布津可湿性粉剂:水=1:4:0.15:100(重量比)的混合液喷雾。尤其病部喷布均匀周到,7天一次,连喷两次。喷药后7天菌层开始黄化脱落,30天后防治效果达100％,比使用波尔多液、石硫合剂等防治省时省工,收到事半功倍、彻底根治的效果。我地11月份柚树已进入相对休眠期,不致产生药害。
In recent years, some pomelo gardens in our country due to poor management, plaster disease serious, the incidence of strains up to 100%, seriously affecting the tree vigor, some branches have died. The author in mid-November 1991 selected salt: quicklime: 70% thiophanate-methyl wettable powder: water = 1: 4: 0.15: 100 (weight ratio) of the mixture spray. In particular, the disease department evenly distributed, 7 days time, and even spray twice. 7 days after spraying the bacteria began yellow shedding, 30 days after the prevention and treatment of up to 100%, than the use of Bordeaux mixture, lime sulfur mixture, etc. save time and labor, received a multiplier, radical effect. November my pomelo tree has entered the relative dormancy period, will not produce phytotoxicity.