今年前半年北方地区气温偏高,旱情表现严重,许多病菌都处于潜伏状态,果园病害发病轻,一些果农因此放松了病害防治,忽视了果园管理,但自秋以来,降雨次数增多,降雨量增大,这虽然缓解了果园缺水的矛盾,但导致温度降低,湿度升高,给病害的发生、发展、蔓延创造了良好的条件,因此抓住有利时机搞好果园病害防治,对于保证果品优质和来年果树正常生长都具有十分重要的作用。 1.苹果轮纹烂果病幼果期呈潜伏状态,主要危害近成熟和贮藏期果实,低温多雨、树势衰弱有利于发病。采收前除1—2次内吸性杀菌剂,可以降低采收期及贮藏期果实带菌率。药剂可选用4%农抗120果树专用型600倍液、70%甲基托布津1000倍液、菌立灭2号200倍液。果实采收后,剔除病、虫、伤果,用上述药剂浸果,晾干后贮藏,也可控制发病。 In the first half of this year, temperatures in the northern part of the country were high, and the drought was severe. Many of the germs were in a latent state. Some of the orchard diseases were less prone to disease. Some of the farmers therefore relaxed disease control and neglected orchard management. However, since autumn, the number of rainfalls increased and rainfall increased Large, although this has eased the contradiction of water shortage in orchards, it led to lower temperature and higher humidity, which created good conditions for the occurrence, development and spread of diseases. Therefore, seizing the favorable opportunity to prevent or control fruit diseases in orchards, And next year’s normal growth of fruit trees have a very important role. 1 apple rotten rot disease young fruit period was latent state, the main hazards near ripening and storage of fruits, low temperature and rainy, tree weakness conducive to the disease. In addition to 1-2 times before the absorption within the fungicide, can reduce the harvest and storage period fruit carrier rate. Pharmacy can be used 4% of agricultural 120 fruit-specific type of 600 times, 70% thiophanate-methyl 1000 times, 2 strains of bacteria off 200 times. After the fruit is harvested, the diseases, worms and injured fruits are eliminated, soaked in the above medicaments, stored after drying, and the disease can also be controlled.