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重庆市北碚区龙凤公社罗家湾生产队有十六、七年生苹果树400多株,2-7年生幼树200多株。过去长期没有管理,病虫害严重,一直没有产量。1969年我们同贫下中农一起,开始加强管理,1970年开始结果。但由于食心虫的为害,好果率只有百分之十几。又因早期落叶病严重,树势衰弱,产量亦低。特别是许多幼树,因受半兰天牛为害,枝条枯折极多,无法对其整形培养树冠,并使进入结果期推迟。后来,在加强其他管理的同时,抓紧对病虫的防治。这样,不仅产量逐步提高,而且好果率也不断增加,到1973年苹果果实的好果率已上升到百分之九十几。幼树生长发育正常。
Chongqing Beibei District Longfeng commune Luojiawan production team has sixteen, seven-year-old more than 400 apple trees, 2-7 year-old saplings more than 200 strains. In the past long-term unmanaged, pests and diseases were serious, there has been no production. In 1969, together with the poor middle peasants, we started to step up our management and the results began in 1970. However, due to the damage caused by moth worms, the good fruit rate is only over 10%. Because of early deciduous disease, tree weakness, yield is low. In particular, many saplings, harmed by Celastrus angustifolia, have a very high number of branches that can not cultivate their canopy and delaying their entry into fruition. Later, while strengthening other management, pay close attention to the prevention and control of pests and diseases. In this way, not only the gradual increase of output but also the increase of the good fruit rate have risen to as high as 90% by 1973. Saplings grow and develop normally.