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首页> 外文期刊>Aspects of Applied Biology >Evaluating cultivar-based integrated control with reduced fungicide inputs for the control of potato late blight, caused by Phytophthora infestans, in the UK
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Evaluating cultivar-based integrated control with reduced fungicide inputs for the control of potato late blight, caused by Phytophthora infestans, in the UK

机译：在英国评估基于品种的综合防治措施，减少杀真菌剂的使用，以控制疫病疫霉（Phytophthora infestans）引起的马铃薯晚疫病

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摘要

The principle of using reducing fungicide inputs on potato cultivars with good late blight resistance to control Phytophthora infestans leaf blight has been demonstrated in other European countries. As EU legislation moves to promote lower pesticide inputs, research is being carried out to provide data to enable agronomists to recommend this strategy, including in the UK. In this study integrated control, comprising of cultivar resistance used in conjunction with reduced fungicide inputs, was highlyeffective in controlling P. infestans, even when disease pressure was high under UK conditions. Using a moderately resistant cultivar (Cara) with a foliar blight resistance rating of 5 was sufficient to reduce the fungicide dose required to control lateblight substantially whilst maintaining equivalent control to a reference standard. Where reduced fungicide inputs were applied at extended intervals to moderately resistant varieties disease control was, in the majority of situations, as effective as the reference treatment. Where resistant cultivars with a foliar resistance rating of 7 (Sarpo Mira) were used, disease control was superior to the reference treatment regardless of fungicide rate and application interval.
机译：在其他欧洲国家已经证明了在具有良好的晚疫病抗性的马铃薯品种上使用减少杀真菌剂输入量来控制疫霉疫霉叶枯病的原理。随着欧盟立法推动减少农药的使用，正在进行研究以提供数据，使农学家能够推荐该策略，包括英国。在这项研究中，即使在英国条件下疾病压力很高的情况下，包括对品种的抗性与减少的杀真菌剂投入一起使用的综合控制在控制疫病疫霉方面也非常有效。使用抗叶枯病等级为5的中度抗性品种（Cara）足以减少基本控制晚疫病所需的杀菌剂剂量，同时保持与参考标准的等效控制。在大多数情况下，将减少的杀真菌剂投入长期应用到中等抗病品种上，疾病控制与参考治疗一样有效。在使用叶面抗性等级为7（Sarpo Mira）的抗性品种时，无论杀真菌剂的使用率和施用间隔如何，疾病控制均优于参考处理。

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