The GRASS (V. 4.0) geographical information system (GIS) was used to test
the hypothesis that pheromone trap based predictions of Helicoverpa zea (Boddie)
damage in processed sweet corn could be improved by considering spatial patterns of
corn plantings and wind blocking features around the trap. Wind blocking features
include: tree...
Published August 1987. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog