A study of concentrate sprays for the control of the European corn borer
By: by James Wilbur Apple ...
Published: 1949
Place of publication: Urbana, Illinois
Language: eng
Notes: Vita, p. [1-2]

"An abstract of a thesis submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Entomology in the graduate college of the University of Illinois, 1949."

Literature cited, p. 5.