黄土高原陕甘交界区苹果黑星病的发生与防治

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摘要 2021年黄土高原陕甘交界区苹果黑星病暴发，造成早期落叶，严重削弱了树势，降低了苹果商品价值及花芽质量。为了识别和防治苹果黑星病，简述了苹果黑星病在我国的分布范围、病原菌特性、危害症状、叶片内的扩展状态、发病规律和在黄土高原陕甘交界区暴发的原因，并提出了黑星病的综合防治措施。

关键词 苹果黑星病;病原菌;危害症状;发病规律;防治措施

中图分类号 S 436.611.1  文献标识码 A  文章编号 0517-6611（2022）17-0115-05

doi：10.3969/j.issn.0517-6611.2022.17.029

开放科学（资源服务）标识码（OSID）：

Occurrence and Control of Apple Scab in the Shaanxi-Gansu Border Area on the Loess Plateau

LI Zhi-xi1， LIU Yan-ling2，BAI Gang-shuan3

（1.College of Life Science， Yulin University， Yulin， Shaanxi 719000;2.Agricultural Technology Popularization Center of Huazhou District，Weinan，Shaanxi  714100;3.Institute of Soil and Water Conservation， Northwest Agriculture and Forestry University， Yangling， Shaanxi  712100）

Abstract Apple scab broke out in the Shaanxi-Gansu border area on the Loess Plateau in 2021， which caused the early defoliation， and seriously weakened the tree vigor， reduced the apple commodity value and the quality of flower buds.In order to identify and control apple scab， the distribution in China， the pathogen characteristics， hazard symptoms， the extended morphology in apple leaves， occurrence regularity and the cause of the outbreak in the Shaanxi-Gansu border area on the Loess Plateau of apple scab were described in this paper， and the comprehensive control measures for apple scab were put forward.

Key words Apple scab;Pathogen;Hazard symptom;Occurrence regularity;Control measure

西北黄土高原、环渤海湾、黄河古道和西南高原（云贵高原）冷凉区是我国苹果 （Malus domestica） 传统的四大生产区，其中西北黄土高原是我国最大的优质苹果生产基地。（剩余10116字）