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随着苹果无袋栽培的推广,最重的病害是果实在树上的腐败。共中,最近为害激增的是由Macrophoma sp.引起的果实腐败病。一、病原菌(Macrophoma sp.) 只发现了无性世代,对共有性世代尚不清楚。所以,由Macrophoma sp.引起的此病,暂称为苹果腐败病(高桥等1971年)。根据今后的研究确定病原菌的有性世代,才能对病害正式命名。二、病征和发生情况: 在果实近成熟期的8月中旬—9月上旬开始发生,大部份是在采收之前发病的,在贮藏
With the popularization of apple bagless cultivation, the most serious disease is the corruption of the fruit in the tree. In total, the recent surge in damage is the fruit rot disease caused by Macrophoma sp. First, the pathogen (Macrophoma sp.) Only found asexual generation, the common generation is not clear. Therefore, the disease caused by Macrophoma sp. Tentatively called apple rot disease (Takahashi et al., 1971). According to future research to determine the sexual generation of pathogens, the disease can be officially named. Second, the symptoms and the occurrence of: in the fruit near maturity in mid-August - beginning in early September, most of them are acquired before harvesting, storage