Region 2 | August 20, 2026 | Illinois

Brandon Hall
bhall@westcentralfs.com

Caption: Soybeans still flowering in Knox County August 10th!!
Caption: Northern corn rootworm beetle feeding
Caption: RAIN, RAIN, RAIN . 9+inches of rain this week with 7 in just 3 days
SYNOPSIS

The region has received 9+ inches of rain over the past two weeks, leaving soils saturated, fields muddy, and drainage systems running at full capacity, with limited field activity. Soybeans are mostly at the growth R5 stage and benefiting from the August rainfall, while corn is moving from dough to dent stages as growers are beginning yield checks to see what harvest could look like. Weed pressure remains present, but disease levels are surprisingly low, with only some gray leaf spot and northern corn leaf blight being observed. Northern corn rootworm beetles have become more noticeable over the past few weeks.

WHICH OF THE FOLLOWING BEST DESCRIBES CURRENT CONDITIONS IN THIS COUNTY?
Severely Wet (ground is saturated, standing water is abundant, flooding may be present)
IF CONDITIONS ARE ON THE DRY END, WHICH OF THE FOLLOWING US DROUGHT MONITOR CATEGORIES BEST FIT CURRENT CONDITIONS
Near Normal (Dnada)
WEATHER

An extended period of rain has settled across the area. With temperatures fluctuating from lows in the 60’s to highs back up into 80’s with HIGH humidity!!

PRECIPITATION

Rain has been the theme over the past few weeks here in our region. Our region has tallied rainfall totals over 9+ inches over the past two weeks. Soils are saturated, with field tiles running at FULL capacity and home basements experiencing more wetness than we have seen in years.

FIELD/SOIL CONDITIONS

SATURATED!! The fields are muddy and wet holes and and ditches have water standing.

FIELD ACTIVITIES

Not much field activity has happened over the past few weeks. This week many are starting to do hand yield checks across the region and state.

SOYBEAN GROWTH STAGE

Soybeans received THAT August rainfall that we all talk about missing at harvest. We are very optimistic about the grain fill period that soybeans are experiencing. The only concerns are the wet holes and the soils where drainage is an issue. The majority of soybeans in our region are in that R5 stage. Not many have or are turning yellow yet.

CORN GROWTH STAGE

The majority of corn in our region is in that dough to dent stages (R4-R5). Many are starting to poke their heads in the canopy to see what harvest could look like for 2026 by doing yield checks. We are seeing a fair amount of 16 round ears and a little tip back in pockets.

INSECTS

We have started to spot a fair amount of northern corn rootworm beetles chewing on ears.

WEEDS

Waterhemp and giant ragweed continue to stretch above the canopy of soybeans in areas. Cocklebur is becoming more and more noticeable in areas as well.

DISEASES

Surprisingly, disease has not really taken off yet in our region from previous reports. Some corn has a little grey leaf spot and norther corn leaf blight but nothing too concerning yet.

ABIOTIC ISSUES

Rain has resulted in an extended period of soil saturation, which could cause some issues in our poorly drained soils.

COVER CROP INSIGHTS

Cover crop seeds are staring to be shipped to their desired locations. Growers/Retail are gearing up to get covers flown on soon, as the crop begins to change color, if this is their application method of choice.

OTHER

Ag Day in Williamsfield, IL @ Doubet Benjamin Park – Set for September 13th. This a FREE farm (agriculture) themed day full of fun!!! Everyone is welcome !