Biodiversity Heritage Library

By: Roark, R. C. (Ruric Creegan)

Edition:

Publication info: [Washington, D.C.], [United States Department of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine], [1945]

Volume:

Series:

Holding Institution: University of Florida, George A. Smathers Libraries

Subjects: arthropod pests  Control  Derris  Insecticides  Rotenone  

BHL Collections: Expanding Access to Biodiversity Literature

By: Roark, R. C. (Ruric Creegan)

Edition:

Publication info: [Washington], 1942-1945

Volume: pt.III Homoptera (1943)

Series:

Holding Institution: University of Florida, George A. Smathers Libraries

Subjects: Derris  Insecticides  Rotenone

BHL Collections: Expanding Access to Biodiversity Literature

By: Roark, R. C. (Ruric Creegan) - United States. Office of Experiment Stations.

Edition:

Publication info: [Washington, D.C.], [U.S. Dept. of Agriculture, Bureau of Entomology and Plant Quarantine, Division of Insecticide Investigations], [1939]

Volume:

Series:

Holding Institution: University of Florida, George A. Smathers Libraries

Subjects: botanical insecticides  Derris  Insecticidal plants

BHL Collections: Expanding Access to Biodiversity Literature