Books by J. R. Parker:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Parker, J. R. (John Robert), 1884-1972: Comments and suggestions on locust control in Argentina (U.S. Department of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1947), also by United States. Bureau of Entomology and Plant Quarantine (page images at HathiTrust)- Parker, J. R. (John Robert), 1884-1972: Grasshopper control (United States Government Printing Office, 1953), also by Frank T. Cowan, United States Department of Agriculture, and United States Bureau of Entomology and Plant Quarantine. Division of Cereal and Forage Insect Investigations (page images at HathiTrust)
- Parker, J. R. (John Robert), 1884-1972: Grasshopper control in Montana (University of Montana, Agricultural Experiment Station, 1918), also by R. A. Cooley, H. L. Seamans, and J. R. Parker (page images at HathiTrust)
- Parker, J. R. (John Robert), 1884-1972: Grasshoppers : their habits and damage (U.S. Dept. of Agriculture :, 1964), also by R. V. Connin (page images at HathiTrust)
- Parker, J. R. (John Robert), 1884-1972: Observations on mass flights and other activities of the migratory grasshopper (U.S. Dept. of Agriculture, 1955), also by R. L. Shotwell and Roy C. Newton (page images at HathiTrust)
- Parker, J. R. (John Robert), 1884-1972: Tests of DDT against grasshoppers in 1944 (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1945), also by United States. Bureau of Entomology and Plant Quarantine (page images at HathiTrust)
- Parker, J. R. (John Robert), 1884-1972: Tests of insecticides for grasshopper control, 1947 (U.S. Department of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1949), also by United States. Bureau of Entomology and Plant Quarantine (page images at HathiTrust)
- Parker, J. R. (John Robert), 1884-1972: Tests of insecticides for grasshopper control, 1948 and 1949 (U.S. Department of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1950), also by United States. Bureau of Entomology and Plant Quarantine (page images at HathiTrust)
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