A B C D E F G H I J-K L M N O P Q-R S T U V W-Y
close this section of the libraryVirus diseases of plants.(2)
View the documentThe leafhopper vectors of phytopathogenic viruses (Homoptera, Cicadellidae) : taxonomy, biology, and virus transmission, / by M.W. Nielson. Nielson, Mervin William. 1n Washington : U.S. Dept. of Agriculture, 1968.
View the documentIndexing procedures for 15 virus diseases of citrus trees / prepared by the Committee on Indexing Procedures, Diagnosis, and Nomenclature, Third Conference of International Organization of Citrus Virologists, Campinas and Säao Paulo, Brazil, 1963. Washington, D.C. : Agricultural Research Service, U.S. Dept. of Agriculture, 1968.