Use of a geographical information system to modify pheromone trap-based predictions of Helicoverpa zea (Boddie) damage
By: by Raymond James Drapek.
Published: 1993
Language: eng
Number of pages: 158
Subjects: Heliothis zea.; Corn -- Diseases and pests.; Geographic information systems.
Notes: Typescript (photocopy)

Thesis (Ph.D.)--Oregon State University, 1994.

Includes bibliographical references (leaves 95-106)

BNA Gap Tape Re-edit 9/98.