Distribution of Heterodera glycines in Ohio
1996
Willson, H.R. | Riedel, R.M. | Eisley, J.B. | Young, C.E. | Jasinski, J.R. | Wheeler, T.A. | Kauffman, P.H. | Pierson, P.E. | Stuart, M.C.
A 4-year systematic survey for the presence of soybean cyst nematode Heterodera glycine in Ohio soybean fields was initiated in 1992. A total of 667 soybean fields in 63 counties was sampled. Heterodera glycine was present in 91 fields in 40 counties based on soil samples collected, and in one field in each of three additional counties based on soil samples submitted to the Plant and Pest Diagnostic Clinic or through a preliminary survey conducted in 1991. Soybean hectarage in the 43 counties with at least one field known to be infested with H. glycine accounts for 79% of the total Ohio soybean production area. Eight races of H. glycine were identified in 33 samples from 18 counties. The most common was race 3, identified in 15 sample; others were races 1, 2, 4, 5, 6, 10, and 14.
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