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Region 3 | May 29, 2025 | LaSalle

Torey Colburn
tcolburn@farmland.org

Caption: 15” row soybeans have emerged well through this cereal rye. The giant foxtail is a bit of a challenge in this field but the narrow row will close sooner than a 30” row and will provide good shade to keep it at bay after the post goes on.
Caption: Most of our waterhemp is 1-2” or just barely emerged. Don’t forget it can grow fast in good conditions. Don’t let it get away from you. Be sure to scout!
Caption: Always keep your eyes open in the field. You might just get a glimpse into history!!
SYNOPSIS

Most of the 2025 crop has emerged in the last 3 weeks. Stands look good by and large. Some of the early fields did get a bit of crust and needed a hoe in the absence of a timely rain. Corn stages range from V5 on the first planted fields to VE-V1. Soybeans are mostly VE to VC but we do see some trifoliate leaves here and there. The cool temps over the last 10 days or so have slowed crop growth across the board potentially negating some of the advantage of early planting. Warmer weather is in the forecast but not much rain.

WHICH OF THE FOLLOWING BEST DESCRIBES CURRENT CONDITIONS IN THIS COUNTY?
Mildly Dry (soil is drier than normal, plant growth may have slowed)
IF CONDITIONS ARE ON THE DRY END, WHICH OF THE FOLLOWING US DROUGHT MONITOR CATEGORIES BEST FIT CURRENT CONDITIONS
Abnormally Dry (D0)
WEATHER

Cool conditions over the last 10 days but we are now returning to the upper 70s and low 80s and plenty of sun.

PRECIPITATION

We received a welcome 0.1-0.2” rain in the early morning hours on 5/28. Currently our forecast is dry for the next week.

FIELD/SOIL CONDITIONS

Overall soil conditions are good but we are getting dry. Soybean fields where cereal rye was used as a cover crop are holding slightly more moisture in the top 3” in my observations but only if the rye was terminated early enough.

FIELD ACTIVITIES

Post emergence herbicide applications are ongoing in the first planted corn fields. Most of the soybeans in my area haven’t seen a lot of weed pressure just yet. Side dress applications are going out in corn at this point as well.

SOYBEAN GROWTH STAGE

VE-V1

CORN GROWTH STAGE

V1-V5

WHEAT GROWTH STAGE

N/A

INSECTS

No significant insects observed at this time

WEEDS

The first flush of waterhemp is beginning to break. I’ve seen it mostly in the early corn fields but I’m starting to find pretty much everywhere now. Other usual suspects are out there too- velvetleaf, cocklebur, giant foxtail, giant ragweed, and lambsquarters were all observed in my scouting walks today.

DISEASES

No significant disease pressures observed at this time

ABIOTIC ISSUES

Planting hiccups and operator errors all become visible this time of year. Always take the time to calibrate the automatic shutoffs on your planter!

COVER CROP INSIGHTS

Most producers in the area using cereal rye ahead of soybeans seemed to heed the recommendation to terminate on the early side. This has helped to preserve some soil moisture in our currently dry environment. The shorter rye also melted down to the surface quicker to allow the soybeans quicker access to sunlight when they emerged.

 
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