苹果树腐烂病和自然灾害的防治.doc

苹果树腐烂病和自然灾害的防治 ? 摘要 现在苹果树上的某些次要病虫害已上升为主要病虫害。尤其是在近年来，苹果树上有些次要病虫害已逐步上升为主要病虫害，由于很多果农对这些病虫缺乏认识或防治技术没有有效的对其进行调整，这样一来对苹果的生产造成了较大的损失，也严重影响了果农的经济利益。由于北方冬季比较寒冷，在来年植物的发芽率比较低。如果保护不好的话，植物的胚芽就会冻死，用合理的方法增加芽的发芽率，提高苹果的产量。苹果还有于腐病，褐腐病，黑腐病，黄腐病，花腐病，环斑病，黑星病，花叶病，苦荳病，轮纹斑，灰斑病，水心病，炭疽病，圆斑病，霉心病，锈果病，黑点病。苹果树有腐烂病，圆斑根腐病，黄叶病等病害。对各种病害进行治理提高苹果的产量与并保证苹果的质量。 关键词：苹果树腐烂病；发生特点；防治；冻害 Appletree rotten disease and the prevention and cure of natural calamities Xia Xi Agriculture College in Peking Plant instituteof science technology Make sight-seeing trip agriculture 201020212082 Abstract The some and nextin importance plant diseases and insect pests of apple treetop has already uppedfor the main plant diseases and insect pests now. Particularly is in recent years, apple treetop some nextin importance plant diseases and insect pestles has already gradually upped forthe main plant diseases and insect pests, because of a lot of fruitagricultures us the lace scarcity of these diseases the understanding orprevention and cure technique have no useful as to its carry on tune, by sodoing bring bigger loss to the capacity of apple, also seriously affect theeconomic interest of fruit agriculture. Because the north is colder in winter, the germinationrate in next year plant is lower. If protect anti good words, the bud of plantwill starve with cold, use the germination rate of fair method increase bud andraise the output of apple. The apple is still had to a Fu disease, brown Fudisease, black Fu disease, Huang Fu Bing, spend a Fu disease, ring spotdisease, black star disease, spend vanes disease, bitterness the disease ofthe pox, wheel line spot, ash spot disease, water secret concern, anthraxdisease, circle spot disease, mildewed secret concern, rust fruit disease,black spot disease. The apple tree contains putrefied disease, circle the spotradix Fu disease, The Huang Ye far-gone diseaseharms. Harm progress to manage the output of raising the apple us variousdisease with combine the mass of assurance apple. Keyw