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近几年来,苹果腐烂病、轮纹病、炭疽病等非常严重,有的果园烂果达50%以上。而休眠期防治苹果树病虫害省工、省力、省资金,效果显著。现将苹果树休眠期防治病虫害的几项措施介绍如下。 (一)清扫果园。把修剪下来的病虫枝、病果清扫干净,并集中烧毁,病叶可深埋。 (二)刮树皮及树干喷药。腐烂病、轮纹病主要是以菌丝体和子实体在枝干病斑内外越冬,菌丝体也可在落皮层(枝干上的翘皮)、皮下坏死斑、各种伤口(虫伤、修剪伤、叶痕、果痕)等部位越冬,树枝干上、皮下干斑及病斑内的病菌在冬季还会有缓慢的扩展,到翌年春季形成内大外小的腐
In recent years, apple rot disease, ring rot disease, anthrax and other very serious, and some orchard rotten fruit more than 50%. The dormant apple tree pest control workers, labor-saving, provincial funds, the effect is significant. Now the apple tree dormant pest control measures are described below. (A) clean the orchard. The pruning of insect pests, sick fruit swept clean, and concentrated burned, diseased leaves can be buried. (B) scraping the bark and trunk spray. Rot disease, rotundity is mainly mycelium and fruiting bodies in the branches and stems outside the winter and winter, the mycelium can also be in the cortex (branches of the skull), subcutaneous necrotic spots, a variety of wounds (insects, Pruning wounds, leaf marks, fruit marks) and other parts of the winter, branches dry, subcutaneous dry spots and lesions within the pathogen will have a slow expansion in the spring to the formation of large outer small rot