Sort By:
  1. The grape leafhopper in the Lake Erie Valley /
    By: Johnson, Fred.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1914.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    View Book
  2. The grape root-worm : with special reference to investigations in the Erie grape belt from 1907 to 1909 /
    By: Johnson, Fred. - Hammar, A. G.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture, Bureau of Entomology,1910.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    View Book
  3. The grape root-worm [Fidia viticida] with special reference to investigations in the Erie grape belt from 1907 to 1909. By Fred Johnson and A.G. Hammar ...
    By: Johnson, Fred. - Hammar, Alfred Gottlieb,
    Publication info: Washington,Govt. print. off.,1910.
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
    View Book