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首页> 外文会议>Biennial Meeting of the American Society of Sugar Beet Technologists. >INTEGRATING FUNGICIDE SEED, IN-FURROW FUNGICIDES AND FUNGICIDE BAND APPLICATIONS FOR IMPROVED CONTROL OF RHIZOCTONIA CROWN AND ROOT ROT
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INTEGRATING FUNGICIDE SEED, IN-FURROW FUNGICIDES AND FUNGICIDE BAND APPLICATIONS FOR IMPROVED CONTROL OF RHIZOCTONIA CROWN AND ROOT ROT

机译：整合杀菌剂种子，呋喃布杀菌剂和杀菌剂带应用，以改善Rhizoctonia冠和根腐的控制

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Rhizoctonia crown and root rot occurs in every region that sugarbeets are grown. The disease is caused by a complex of Rhizoctonia solani 2-2 isg (interspecific group) IV and isg III B, with the isg III B become more predominant in areas where corn issignificant in rotations. Since the labeling of azoxystrobin (Quadris) in the mid 1990s growers have used banded and infurrow applications of this fungicide or products such as Headline, Gem or Proline. Efficacy of banded applications was greatly improved when researchers (Jacobsen, Khan) showed that applications must be made before soil temperatures at the 4 inch depth exceeded 70F and after soils at this depth were 60F, rather than a specific growth stage. However, timing for late planting or springswhen soils warm up quickly was a problem or where growers often had a small window for optimal timing. In our 15 years of Rhizoctonia work in MT, the period for optimal timing ranged from 3-17 days depending on the spring. Growers with large acreages frequently could not get optimal timing on all their acres. While Rhizoctonia resistant varieties are available, they frequently have lower yield potential, do not have the full component of other disease resistances such as Rhizomania, Curly Top, Aphanomyces, Fusarium Yellows, and Cercsopora needed by our growers and in our experience have also responded to properly timed fungicide applications with both increased yields and reduced disease severity.
机译：Rhizoctonia Crown和Root腐烂发生在甜菜种植的每个地区。该疾病是由Rhizoctonia Solani 2-2 isg（三分特异性组）IV和ISG III B的复合物引起的，ISG III B在玉米在旋转中的区域变得更加占主导地位。自20世纪90年代中期的氮杂氧纤维素（Quadris）的标记以来，使用该杀菌剂或产品如标题，宝石或脯氨酸等产品使用带状和红细应用。当研究人员（Jacobsen，Khan）表明，在4英寸深度超过70F的土壤温度之前和此深度的土壤之后，必须进行30F，而不是特异性生长阶段，效果将大大提高。然而，延迟种植或泉水的时间迅速热身时是一个问题，或者种植者往往有一个小窗户以获得最佳定时。在我们15年的Rhizoctonia在MT工作中，最佳时机的时期范围为3-17天，取决于春季。种植者的种植者频繁无法在所有英亩上获得最佳的时机。虽然Rhizoctonia抗性品种可用，但它们经常具有较低的收益潜力，而且我们的种植者所需的Rhizomania，卷曲顶部，蚜染色，枯萎病等其他疾病抵抗力的全部成分以及我们的种植者所需的含量也有所回应适当定时的杀菌剂应用，产量增加和疾病严重程度降低。

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