STATE OF 



ILLINOIS 

 BOARD 

 Watson, Chairman 



DEPARTMENT OF REGISTRATION AND EDUCATION 

 OF NATURAL RESOURCES AND CONSERVATION 

 Thomas Park, Ph.D., Biology; L. L. Sloss, Ph.D., Geology: Roger 



John C. Watson, Chairman: Thomas Park, Ph.D., Biology; L. L. Sloss, Ph.D., Geology: Roger Adams, Ph.D., 

 D.Sc, Chemistry: Robert H. Anderson, B.S.C.E., Engineering ; Charles E. Olmsted. Ph.D., Forestry; W. L 

 EvERiTT, E.E., Ph.D., Representing the President of the University oj Illinois: Delyte W. Morris, Ph.D., Presiden: 

 of Southern Illinois University. 



NATURAL HISTORY SURVEY DIVISION, Urbana, Illinois 



SCIENTIFIC AND TECHNICAL STAFF 



Harlow B. Mills, Ph.D., Chief 



Herbert H. Ross, Ph.D., Assistant Chief 



Robert O. Watson, B.S., Assistant to the Chief 



Section of Economic Entomology 



William H. Ll'Ckmann, Ph.D., Entomologist and Head 

 Willis N. Bruce, Ph.D., Entomologist 

 Ronald H. Meyer, Ph.D., Associate Entomologist^ 

 James E. Appleby, Ph.D., Associate Entomologist 

 Robert D. Pausch, Ph.D., Assistant Entomologist 

 Ralph E. Sechriest, Ph.D., Assistant Entomologist 

 Delmar Broersma, Ph.D., Assistant Entomologist 

 Joseph \'. Maddo.x, Ph.D.. Assistant Entomologist 

 Edward J. Armbrust. Ph.D.. Assistant Entomologist 

 Dannel McCollum. B.A., Technical Assistant 

 Grec.ory p. Marsh. B.S., Technical Assistant 

 Ranu Banerjee. B..-\.. Technical Assistant 

 Alan C. York. B.S.. Technical Assistant 

 Sue E. Watkins, Junior Scientific Assistant 

 H. B. Petty, Ph.D.. Entomologist in Extension* 

 Stevenson Moore, III. Ph.D., Entomologist in Exten- 

 sion* 

 RoscoE Randell, M.S., Technical Assistant in Exten- 

 sion* 

 Clarence E. White. B.S., Technical Assistant in Exten- 

 sion* 

 Stanley Rachesky, M.S., Technical Assistant in 



Extension* 

 Donald E. Kuhlman. B.S., Technical Assistant in 



Extension* 

 Amal C. Banerjee, Ph.D., Research Associate* 

 Jean G. Wilson, B.A., Research Associate* 

 Ayten Hatiboclu, B.S., Research Assistant* 

 Keun S. Park. M.S., Research Assistant* 

 Keturah Reinbold, M.S., Research Assistant* 



Section of Faunistic Surveys and 

 Insect Identification 



H. H. Ross. Ph.D.. Assistant Chief and Head 



Milton W. Svnderson, Ph.D., Taxonomist 



Lewis J. Stannard. Ir.. Ph.D.. Taxonomist 



Philip W. Smith, Ph.D.. Taxonomist 



Leonora K. Gloyd, M.S., Associate Taxonomist 



Wallace E. LaBerce. Ph.D., Associate Taxonomist 



RoRERT T. Allen, M.S., Technical Assistant 



Bernice Sweeney, Technical Assistant 



Bess White, A.B., Technical Assistant 



John D. Unzicker. Ph.D.. Research Assistant* 



Tosiiio Yamamoto, M.S., Research Assistant* 



Section of Aquatic Biology 



Geok(.e W. Bennett, Ph.D.. Aquatic Biologist and Head 



William C. Starrett, Ph.D., Aquatic Biologist 



R. W. Larimore. Ph.D., Aquatic Biologist 



David H. Buck, Ph.D., Associate Aquatic Biologist 



Robert C. Hiltibran, Ph.D.. Associate Biochemist 



Donald F. Hansen, Ph.D., Associate Aquatic Biologist 



William F. Childers, Ph.D., Assistant Aquatic Biologist 



David L. Thomas. B.S.. Research Assistant 



Maryfran Martin. Technical Assistant 



Claude Russell Rose. Field Assistant 



Charles F. Thoits, III, B.A., Research Associate* 



Section of Applied Botany and Plant Pathology 



J. Cedric Carter, Ph.D., Plant Pathologist and Head 



J. L. Forsberg, Ph.D., Plant Pathologist 



Robert A. Evers, Ph.D., Botanist 



Robert Dan Neely, Ph.D., Plant Pathologist 



E. B. Himelick, Ph.D., Plant Pathologist 



G. H. Boewe, M.S., Associate Plant Pathologist 



Walter Hartstirn, Ph.D., Assistant Plant Pathologii 



D. F. Schoeneweiss. Ph.D., Assistant Plant Pathologii 



Bruce L. Johnson, B.S., Technical Assistant 



David Russell Vance, Technical Assistant 



Robert J. Slattery. B.S.. Technical Assistant 



Robert S. Perry. B.S.. Technical Assistant 



Betty S. Nelson, Technical Assistant 



Sylvia P. Brockstein. M.S.. Technical Assistant 



Section of Wildlife Research 



Glen C. Sanderson, Ph.D., Wildlije Specialist and Head^ 

 F. C. Bellrose, B.S., Wildlife Specialist 

 H. C. Hanson, Ph.D., Wildlife Specialist 

 Richard R. Graber, Ph.D., Wildlife Specialist 

 Ronald F. Labisky, M.S., Associate Wildlife Specialist 

 William R. Edwards, M.S., Associate Wildlife Speciali. 

 William W. Cochran, Jr., Assistant Wildlife Special) 

 Rorert E. Greenberc, M.S.. Research Assistant 

 Jeffrey C. Hanson, M.S.. Research Assistant 

 Helen C. Schultz, B.S., Technical Assistant 

 Lucinda Janis, Technical Assistant 

 Robert D. Crompton. Field Assistant 

 William J. Francis, Ph.D., Research Associate* 

 Jack A. Ellis, M.S., Research Associate* 

 James A. Bailey, Ph.D.. Research Associate* 

 Gerald G. Montgomery. M.S., Research Associate* 

 William L. Anderson, M.A., Research Associate* 

 George B. Joselyn, M.S., Research Associate* 

 Gerald L. Storm, M.S., Field Ecologist* 

 Ronald L. Westemeier. B.S., Research Associate* 

 Stanley L. Etter, M.S., Research Assistant* 

 Robert E. Hawkins, B.S., Research Assistant* 

 Larry D. Martoglio. M.S., Research Assistant* 

 Keith P. Dauphin, Project Assistant* 



1 



Section of Publications and 

 Public Relations 



Owen F. Glissendorf, M.S., Technical Editor and Hei 

 Robert M. Zewadski, M.S., Associate Technical Editi 

 Nancy K. Ginzel, B.S., Assistant Technical Editor 

 Wilmer D. 7ehr. Technical Photographer 

 William L. Taylor, Technical Assistant 



Technical Library 



Doris F. Dodds, B.A., M.S.L.S., Technical Librarian 

 Patricia F. Stenstrom, B..A., M.S.L.S., Assistant Tech 

 nical Librarian 



CONSULTANTS: Herpetology, Hobart M. Smith, Ph.D., Professor of Zoology, University of Illinois; Parasitoloc 

 Norman D. Levine. Ph.D., Professor of Veterinary Parasitology and Veterinary Research, University of Ulinoi. 

 Wildlife Research. Wii.i.ard D. Klimstra, Ph.D., Professor of Zoology and Director of Cooperative Wildlife R 

 search. Southern Ulinois University ; Statistics, Horace W. Norton, Ph.D., Professor of Statistical Design ai 

 Analysis. University of Ulinois. 



•Employed on cooperative projects with one of several agencies: University of Illinois, Illinois Agricultural E.xte 

 sion Service, Illinois Department of Conservation, National Science Foundation, United States Department of Agi 

 culture. United States Fish and Wildlife Service, United States Public Health Service, and others. 



This paper is a contribution from the Section of Applied Botany and Plant Pathology, 



(29080— 10M—n-66)::iU e:v^„\..,r,;ia2 



