Received for publication October 14, 1982. Paper No. 8103 of the Journal Series of the North Carolina Agricultural Research Service (NCARS), Raleigh. The use of trade names in this paper does not imply endorsement by NCARS of products named, nor criticism of similar ones not mentioned. Thanks are due R.D. Milholland, Dept. of Plant Pathology, for his identification of decay organisms, advice during the test, and review of the manuscript; and E.P. Maness for her technical assistance during the experiments. The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this fact.