Analysis of the causes for worsening maize common smut and the countermeasures | 玉米黑粉病危害加重原因分析及综合治理对策
2011
Wang Chaoyang, Plant Protection and Quarantine Station of Anyang City, Anyang(China) | Zhao Rongyan, Henan Institute of Science and Technology, Xinxiang(China) | Wang Jiansheng, Henan Huafeng Seed Science and Technology Co. Ltd. , Huaxian(China)
Китайский. 摘 要：根据近年对豫北安阳市玉米黑粉病发生危害情况的调查结果，总结出该病具有发生因品种而异、区域逐年扩大、危害多集中于雌穗、程度逐年加重、局部受害严重的特点；分析其发生危害加重的原因，主要有田间菌源量大、外来菌源传播扩散、缺乏有效防治措施、气候环境条件适宜、玉米品种抗病性较差、相关法律法规未阻止病害随种子传播等多方面；提出了以选用优质抗病品种、减少菌源、加强栽培管理等农业防治为主，以药剂处理种子和茎叶喷雾等化学防治为辅，同时搞好技术服务、完善相关法律法规等综合治理对策。
Показать больше [+] Меньше [-]Английский. Hazard characteristics of common smut caused by the fungus Ustilago maydis was summarized and the causes of its outbreaks were analyzed through surveying in Anyang City in recent years. Ustilago maydis damaged female heads of corns. Common smut has become more serious yearly due to large amounts of U. maydis in fields and propagating pathogen. Moreover, climate conditions, disease resistance of corn breeds and lack of correlative legislation worsened the situation. Comprehensive treatment countermeasures were put forward, giving high prior- ity to agricultural control, assisted with chemical control. In addition, technical service and the relative laws are also required.
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