K. R. Buckland, C. Ocamb, A. L. Rasmussen, L. Nackley
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引用次数: 0
Abstract
Widespread outbreaks of tomato powdery mildew (Leveillula taurica and Oidium neolycopersici) are problematic in fresh market tomato (Solanum lycopersicum) crops in western Oregon, USA. In western Oregon, fresh market tomatoes are frequently grown in greenhouses or high tunnels where conditions can promote diseases such as powdery mildew. Heightened concerns about worker safety limit the pesticides available for use in enclosed systems. We studied the efficacy of ultraviolet-C (UV-C) light applications under high-tunnel conditions compared with a standard fungicide program. Plants treated with UV-C had zero incidence of powdery mildew on all sample dates in the first trial. In trial 2, disease incidence was lower on UV-C treated plants than both grower standard and nontreated control early in the study while disease severity remained lower in UV-C than nontreated control and similar to grower standard treatment. Additional research is needed to optimize UV-C treatment intervals to minimize negative effects on plant growth and maximize powdery mildew control.
在美国俄勒冈州西部，番茄白粉病(牛痘水平菌和新番茄白粉病)的广泛爆发是新鲜市场番茄(茄)作物的问题。在俄勒冈州西部，新鲜的市场番茄通常种植在温室或高隧道中，那里的条件会促进白粉病等疾病的发生。对工人安全的高度关注限制了可用于封闭系统的农药。我们研究了在高隧道条件下紫外- c (UV-C)光应用与标准杀菌剂程序的效果。在第一次试验中，用UV-C处理的植物在所有样品日期的白粉病发病率为零。在试验2中，在研究早期，UV-C处理的植物的疾病发病率低于种植者标准和未处理的对照，而UV-C处理的疾病严重程度仍低于未处理的对照，与种植者标准处理相似。需要进一步的研究来优化UV-C处理间隔，以尽量减少对植物生长的负面影响，并最大限度地控制白粉病。
期刊介绍：
HortTechnology serves as the primary outreach publication of the American Society for Horticultural Science. Its mission is to provide science-based information to professional horticulturists, practitioners, and educators; promote and encourage an interchange of ideas among scientists, educators, and professionals working in horticulture; and provide an opportunity for peer review of practical horticultural information.
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