得利寺公社小屯大队的小屯生产队,是以果树生产为主的生产队。全队共有苹果树9300棵,其中结果树6700棵,树令多为15～40年生。果树收入占农业总收入的65％以上,是当地群众的主要经济来源。这个队的果树,过去由于管理与防治技术跟不上,致使树体衰弱,腐烂病大发生,结果树几乎棵棵患病,幼令树发病率也在30％左右。从而,苹果树产量逐年下降,最低年产不足40万斤。面对这个严重局面,该队果树技术 The Little Tuen Brigade, a unit of the Little Tuen Brigade, is the production team that mainly produces fruit trees. The team has a total of 9300 apple trees, of which 6,700 trees result, the tree is mostly 15 to 40 years old. Fruit trees account for more than 65% of the total agricultural income, which is the main source of income for local people. The team’s fruit trees, due to management and prevention and control technology in the past can not keep up, resulting in the body weak, rot disease occurred, the results almost trees Keke disease, young trees are also about 30% incidence. Thus, apple tree production declined year by year, the minimum annual output of less than 40 kg. Faced with this serious situation, the team fruit trees technology