Vol. 102 (1989): Proceedings of the Florida State Horticultural Society Citrus Phytophthora Feeder Root Rot of Bearing Citrus: Fungicide Effects on Soil Populations of Phytophthora parasitica and Citrus Tree Productivity PDF L. W. Timmer, H. A. Sandier, J. H. Graham, S. E. Zitko Published 1990-05-01 PDF