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extlinkicon   University of California IPM: Disease Control Outlines for Narcissus

“Daffodil Diseases and Pests, Yesterday, Today, and Tomorrow,” T.E. Snazelle, PhD, April 2013

“Disease Control, Management of Basal Rot,” Gordon Hanks & John Carder; Pesticide Outlook, December 2003, pp. 260-264

Daffodil Diseases and Pests, T.E. Snazelle, PhD; Middle Tennessee Daffodil Society,1986

Disease and Pest Control Recommendations for Narcissus, Washington State University, Revised July 1979

Diseases of Narcissus, Extension Bulletin 709, Washington State University, June 1979

Basal Rot, UK Ministry of Agriculture, Fisheries and Food, 1978

“Virus Diseases of Narcissus,” A.A. Brunt, RHS Daffodil and Tulip Yearbook, 1971

“The Bentonite Flocculation Test for Detection of Plant Viruses and Titration of Antibody,” by John Bozievich et al, Proceedings of The Society for Experimental Biology and Medicine, 1963

Bulb Growing and Forcing, Northwest Bulb Growers Association, 1957

Diseases of Bulbs, Bulletin No. 117, Ministry of Agriculture and Fisheries, 1949

Narcissus Diseases,” Charles J. Gould; Herbertia, Vol. 13, 1946

Diseases of Narcissus; Bulletin 304, Agricultural Experiment Station, Oregon State Agricultural College, June 1932