A flower-spot disease of cultivated azaleas Weiss, Freeman. creator Smith, Floyd F. (Floyd Franklin) 1900- joint author. text dcu Washington U.S. Govt. Print. Off. 1941] 1941 monographic eng
print
26 p. incl. illus., tab. 23 cm. by Freeman Weiss ... and Floyd F. Smith ... Caption title. Joint contribution from Bureau of Plant Industry and Bureau of Entomology and Plant Quarantine. "Issued July 1940, revised July 1941." Azaleas Diseases and pests SB608.A9 W4 1941 632.44 United States. Dept. of Agriculture. Circular no. 556 agr41000669 U.S. Dept. of Agr. Library 830819 20260227111000.0 agr41000669