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ACKNOWLEDGMENTS
Legner, E. F.
1961. An ecological study of
some foliage-feeding insects on young
nonbearing apple trees in Wisconsin. Ph.D.
Thesis, University of Wisconsin, Madison.
139 pp. The writer wishes to
express his gratitude and sincere appreciation to his advisor, Dr. Earl
Oatman, for his suggestions, supervision and constructive criticism during
the progress of the investigations, and to Dr. James Torrie whose invaluable
assistance in analyses made possibly many of the conclusions reached in this
work. Appreciation is also to the
United States Insect Identification and Parasite Introduction Research Branch
in Beltsville, Maryland and to the Department of Insect Pathology, University
of California, Berkeley, for their work with specimen identifications. |