Known Distribution of the Soybean Cyst Nematode, Heterodera glycines, in the United States and Canada, 1954 to 2017

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2017-06-19
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Tylka, Gregory
Marett, Christopher
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The soybean cyst nematode (SCN), Heterodera glycines Ichinohe, remains a major yield-reducing pathogen of soybeans, Glycine max L. Merr., in North America more than 60 years after its first discovery in the United States, in North Carolina in 1954 (Winstead et al. 1955). The nematode recently was ranked as the most damaging soybean pathogen in the United States and Canada (Allen et al. 2017). SCN is believed to have been introduced to the United States from Asia (Noel 1992; Riggs 2004), and as an introduced pest, knowledge of the distribution of SCN can be helpful in identifying areas where scouting and management efforts should be focused. Such information is especially important for SCN because yield-reducing infestations can occur without obvious above-ground symptoms (Wang et al. 2003).

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This article is published as Tylka, Gregory L., and Christopher C. Marett. "Known Distribution of the Soybean Cyst Nematode, Heterodera glycines, in the United States and Canada, 1954 to 2017." Plant Health Progress 18, no. 3 (2017): 167-168. doi: 10.1094/PHP-05-17-0031-BR. Posted with permission.

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