by United States. Plant Pest Control Division

1963

by United States. Agricultural Research Service

1967

by United States. Agricultural Research Service

1958

by United States. Department of Agriculture

1927

by United States. Plant Pest Control Division

1914

by United States. Congress

1965

by United States. Congress. Senate. Committee on Agriculture, Nutrition, and Forestry. Subcommittee on Agricultural Research and General Legislation

1977

by United States. Plant Pest Control Division

1917

by United States. Entomology Research Division

1928

by United States. Department of Agriculture

1928

by United States. Department of Agriculture

1922

by UNITED STATES DEPARTMENT OF AGRICULTURE

1912