Historical European Corn Borer Data Available on the Web
We sincerely hope you find the historical information about
European corn borer densities in Illinois useful. We suspect that
the data can be used in many ways, including determination of
economic impact of corn borers and planning for use of Bt corn
for management of European corn borers. Please feel free to use
the data in any manner you deem appropriate. If you develop slides
or handout sheets from the Web site, please attribute the source
of the information--University of Illinois, Extension Entomology,
Department of Crop Sciences and Illinois Natural History Survey.
Getting the data from fall surveys of second-generation European
corn borers in Illinois from 1943 through 2001 on to a website
was a massive undertaking. The people involved in this process
are too numerous to mention. All of this was made possible by
a grant (Illinois IPM On-Line) from the Illinois Council on Food
and Agricultural Research (C-FAR).
For an overview and an explanation for the fall surveys of second-generation
European corn borers in Illinois, go to http://www.ipm.uiuc.edu/fieldcrops/insects/european_corn_borer/fall_survey.html.
From this site, you can link to farm.edu (http://space1.itcs.uiuc.edu/website/farmedu,
also developed with funding from a C-FAR grant), which includes
the European corn borer database from 1943 through 2002. When
you get to the Web site, click on "European Corn Borer, 1943-2002"
in the left panel. When the new Web page loads, you should see
an outline map of Illinois that includes all counties and crop
reporting districts (as created by the Illinois Agricultural Statistics
Service). At the site you will be able to view data collected
from individual counties, for crop reporting districts, or for
the state. For individual counties or specific crop reporting
districts, you can select the county or district of interest from
the menus provided, or you can click on the county or district
in the outline map. If you do the latter, the county or district
of interest will be indicated in yellow. You also can view data
for all years or for selected years (e.g., 1950-1975, 1990-2000).
In the lower portion of the panel, you can access specific information
for a given year for either individual counties (default) or crop
reporting districts. The information is presented in both graph
and colored map formats. For a brief explanation about how to
use and navigate the Web pages, click on "Help" in the
upper right of the panel titled "European Corn Borers."