本年度胶东地区苹果园发生历史罕见的大面积早期落叶(褐斑病引起)及轮纹烂果病。据调查统计,本市苹果园落叶率占40％～50％,烂果率达50％～60％,个别管理较差的果园,落叶率达80％以上,烂果率达90％以上,甚至绝收,有的果树已开二次花,严重影响当年及翌年的苹果产量,经济损失十分惨重。 为维护广大果农利益,保障我市苹果的增产丰收,我们对今年大面积发生的苹果落叶及烂果病的发生原因进行了透析,并提出了切实 This year Jiaodong apple orchards rare history of large areas of early leaves (brown spot caused) and rotten rotten rot disease. According to the survey statistics, the city apple orchard deciduous rate of 40% to 50%, rotten fruit rate of 50% to 60%, some poorly managed orchards, decay rate of 80% or more, rotten fruit rate of 90% or more, or even No harvest, and some fruit trees have opened the second flower, seriously affecting the current year and the following year’s apple production, the economic losses are very heavy. In order to safeguard the interests of the majority of farmers and ensure the bumper harvest of apples in our city, we conducted a thorough analysis of the reasons for the occurrence of apple deciduous and rotten diseases in a large area this year and put forward practical measures