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A Plant Assay of Soil to Assess Potential Damage to Wheat by Heterodera avenae. A. Simon, Technical Officer, CSIRO, Division of Soils, Glen Osmond, South Australia, 5064. Plant Dis. 64:917-919. Copyright 1980 American Phytopathological Society. DOI: 10.1094/PD-64-917.

A plant assay of soil to predict, before seeding, the potential damage to wheat by cereal cyst nematode (CCN) in soil from individual fields is described, validated, and compared with CCN egg counts of the same soil samples. The relationship between the plant assay of CCN in 17 fields and the yield response to nematicide application was highly significant (r value, 0.65).