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Thomas O. Green, John N. Rogers III, James R. Crum, Joseph M. Vargas Jr., and Thomas A. Nikolai

Turfgrass health is a major concern for golf course managers. Dollar spot ( Salgado-Salazar et al., 2018 ; Smiley et al., 1992 ) is the most common foliar disease in the upper Midwest affecting turfgrass quality and playability resulting in the

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Yun-Im Kang, Hyang Young Joung, Dae Hoe Goo, Youn Jung Choi, Mok Pil Choi, Hye Ryun An, Jae-Young Ko, Kang-Joon Choi, Ki Hwan Lee, and Kye Wan Hong

objective was to determine the demands of the industry and producers and to gather specific information regarding diseases, pests, and horticultural problems in relation to their severity and differences among cultivars. Materials and methods The

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Dermot P. Coyne, Eladio Arnaud Santana, James Beaver, James R. Steadman, Graciela Godoy Lutz, Douglas Maxwell, and Lisa Sutton

102 POSTER SESSION 4G (Abstr. 234–247) Disease Control–Cross-commodity

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Jenny C. Moore, Brian Leib, Zachariah R. Hansen, and Annette L. Wszelaki

The numerous benefits of polyethylene (PE) mulch for specialty crop production of many crops have been well established, such as weed control, moisture regulation, reduced disease, and higher quality and yield ( Gao et al., 2019 ; Kasirajan and

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Melinda A. Miller-Butler, Barbara J. Smith, Kenneth J. Curry, and Eugene K. Blythe

Anthracnose diseases on strawberry are destructive and may be caused by three Colletotrichum species: C. acutatum J. H. Simmonds, C. fragariae , and C. gloeosporioides ( Maas, 1998 ; Smith, 1998 ). C. acutatum is the primary causal agent

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Akihiro Itai, Takaaki Igori, Naoko Fujita, Mayumi Egusa, Motoichiro Kodama, and Hideki Murayama

. pyrifolia Nakai (Japanese pear: Nashi), which are commercially cultivated in temperate zones ( Bell, 1990 ). Pears are susceptible to a number of diseases, mostly caused by fungi. In European varieties, resistance against fungal diseases such as scab

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Ryan J. Hayes, Mark A. Trent, Beiquan Mou, Ivan Simko, Samantha J. Gebben, and Carolee T. Bull

release early-generation (F 2 to F 4 ) populations genetically fixed for disease resistance but with sufficient variability for leaf characters to encompass two or more lettuce types used in baby leaf production. External breeding programs could then

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Annelle W.B. Holder, Winston Elibox, Christopher Avey, and Pathmanathan Umaharan

Bacterial leaf spot disease of anthurium ( Anthurium andraeanum L.) caused by A . anthurii ( Gardan et al., 2000 ) was first reported in the French West Indies ( Prior and Rott, 1989 ; Prior and Sunder, 1987 ; Prior et al., 1985 ) and later in

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Kubilay Kurtulus Bastas and Fikrettin Sahin

adaptation studies ( Barut, 2000 ). Fire blight, caused by the bacterium Erwinia amylovora (Burr.) Winslow et al., is a disease that affects many Rosaceous species with apple ( Malus sp.) and pear ( Pyrus sp.) being of the greatest economic significance

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Kevin Ong, Madalyn Shires, Holly Jarvis Whitaker, Jennifer Olson, Joseph LaForest, and David H. Byrne

Rose rosette disease was described in the early 1940s ( Conners, 1941 ; Thomas and Scott, 1953 ). Since then, much of the work that was carried out to understand this disease was focused on multiflora roses until the 1990s. In recent years, RRD