苹果树腐烂病是我国北方苹果产区一种严重的枝干病害,常造成死枝死树,严重影响苹果生产。目前生产上一般采用刮治方法,虽有一定作用,但病疤重犯率高,费劳力。一、试验方法遵照毛主席“要认真总结经验”的教导,我们对过去一般药效测定方法进行了分析,发现过去沿用的几种室内药效测定方法结果与田间试验结果不符,给试验工作造成困难,经过反复试验,初步摸索到一种新方法:将田间已生孢子器的病枝取回,截成5——8厘米长的 Apple tree rot disease is a serious branch disease in the apple producing area in northern China, often resulting in dead branches dead trees, seriously affecting the apple production. At present, the general production method scraping treatment, although a certain role, but the high incidence of scarring, laborious. First, the test method In accordance with Chairman Mao “to seriously sum up experience,” the guidance, we have the general method for the analysis of the general effect and found that the past several types of indoor efficacy measurement method results inconsistent with the field test results to the test work Difficulties, after repeated tests, initially explored a new method: the spore of the field has been spore disease recovery, cut into 5 - 8 cm long