Table 2. Summary of western corn rootworm monitoring program
(Pherocon AM traps) in producers' soybean fields by county, 2000.

1 Number of Pherocon AM traps distributed evenly within a producers' soybean field.
2 Average number of adult western corn rootworms caught per trap per day throughout
a 4-week monitoring period (late July through third week of August).
3 Number of monitored soybean fields in a given county.