Abstract
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Contributor Notes
Received for publication April 27, 1979. Paper No. 6087 of the Journal Series of the North Carolina Agricultural Research Service, Raleigh. Cooperative investigations of the U. S. Department of Agriculture and North Carolina State University. Mention of a trademark, proprietary product, or vendor does not constitute a guarantee or warranty by the U. S. Department of Agriculture or the North Carolina Agricultural Research Service and does not imply approval of it to the exclusion of other products or vendors that also may be suitable.
The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper must therefore be hereby marked advertisement solely to indicate this fact.
Plant Pathologist, USDA-SEA-AR and Professor, Department of Plant Pathology, and Associate Professor, Department of Horticulture, respectively. Thanks are extended to Tommy N. Gray for technical assistance in this study, and to Dr. J. O. Rawlings, Professor, Department of Statistics, for statistical assistance in this study.
Abstract
