苹果树腐烂病是一种毁灭性病害。为了确定一种比较理想的防治药剂,我们选择了几种常用的药剂,进行了防效比较试验。现简报如下。一、材料和方法试验于1986年4月在烟台市只楚果园进行。该果园为沙滩地,肥水管理较差,树势中庸偏弱,罹病较重,树龄在20年生 Apple tree rot disease is a devastating disease. In order to determine an ideal control agent, we have selected several commonly used agents and conducted a comparative control effect test. Now briefing as follows. First, the material and method test in April 1986 in Yutai City, only Chu orchards. The orchard is a sandy beach, fertilizer and water management is poor, weak middle-aged trees, severe illness, age 20 years