Some new or noteworthy plant disease records and outstanding developments in the United States in 1949
By: compiled by Nellie W. Nance
Contributors: United States. Plant Disease Survey
Series: Plant disease reporter -- suppl. 194; Plant disease reporter -- suppl. 194.
Publisher: Plant Disease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department of Agriculture
Published: 1950
Place of publication: Beltsville, Md
Language: eng
Number of pages: 380
Subjects: Plant diseases
Notes: Caption title.

"June 30, 1950."