Douglas B. Gucker 
IL Extension
dgucker@illinois.edu

Douglas B. Gucker 
IL Extension
dgucker@illinois.edu

DOUGLAS B. GUCKER UPDATES

Region 5 | July 2, 2026 | DeWitt, Macon & Piatt

Doug Gucker
dgucker@illinois.edu

Soybeans in the R3, beginning pod stage
Caption: Soybeans in the R3, beginning pod stage.
Soybean field showing areas of flooding and delayed weed control
Caption: Some area soybean fields were flooded, which has delayed weed control.
Caption: The corn plant on the left was from a field that had cover crops and the plant on the right did not.
SYNOPSIS

Crops are growing well with soybeans in the R2 to R3 stages, and corn is in VT to R1 stages. So far, not seeing any leaf diseases in corn or soybeans. Japanese beetles are being seen feeding on tender vegetation, but are not yet evident in fields. I have not found any root feeding in corn, and root systems in fields planted under good conditions are looking healthy and strong.
The wheat harvest is quickly wrapping up in the wetter areas of the region, with double-crop planting following soon after.
Post-emergent soybean herbicide applications delayed by wet field conditions are wrapping up, with the target weed species larger than desired.

WHICH OF THE FOLLOWING BEST DESCRIBES CURRENT CONDITIONS IN THIS COUNTY?
Mildly Wet (soil is wetter than normal, local vegetation is healthy)