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Illinois Crop Update – August 22, 2025

  • August 22, 2025
  • Illinois Extension

Steve Brand– Commercial Agriculture Specialist
DeKalb County
Soil Condition: Near Normal
After a wet couple of weeks up north we are all but back to normal precipitation levels for the season. Most areas across northern IL saw anywhere from 1-4 inches of rain depending on how many storms hit over the past weekend and have primed plants to finish strong through ear and pod fill. Disease has become much more prevalent as the rain has opened up and temperatures have dropped from the 90s.…

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Aug 15 | Weather Update and Markets Review

  • August 15, 2025
  • Todd Gleason

 
It was back in the fire this week. Average temperatures ranged from the mid-70s to the low 80s, between 2 and 7 degrees above normal statewide. August to date has been around 1 degree above normal so far. The summer season so far has been the 5th warmest on record in Chicago, and the average nighttime low temperature in Peoria so far this summer is the highest since 1887. The extreme nighttime heat this summer is mostly thanks to persistently high humidity.…

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Illinois Crop Update – August 15, 2025

  • August 15, 2025
  • Illinois Extension

Russ Higgins – Commercial Agriculture Educator
Grundy County
Soil Conditions: Mildly Dry (soil is drier than normal, plant growth may have slowed)
This week Dr. Giovani Preza Fontes, assistant professor and Agronomy Extension Specialist from the University of Illinois visited the Grundy-Kendall County area and met with area producers where he shared expectations of both state and local yields. Farmers were provided with recent weather data and were encouraged to take kernel and population counts to determine yield estimates in their own fields.…

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Another bin-busting corn crop in Illinois approaches maturity

  • August 13, 2025
  • Giovani Preza Fontes, Emerson Nafziger

You can also read the article in Portuguese and Spanish
The Illinois corn crop got off to a good start in 2025, with good stands and good canopy color, aided by warm (after a cool spell in late May) and dry conditions in June. Still, crop ratings have been average so far, similar to those in the previous five years except for 2023, when very low June ratings rebounded after rainfall. On August 10,…

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Aug 08 | Weather Update and Markets Review

  • August 9, 2025
  • Todd Gleason

 
We all breathed a sigh of relief at our much more comfortable temperatures last weekend and early next week. Temperatures in the first full week of August ranged from the low 60s in northern Illinois to the mid-70s in southern Illinois, between 1 and 5 degrees below normal. Some of the more impressive nighttime low temperatures included 49 degrees in Stockton and 50 in McHenry.
The cooler and less humid air came with a break from precipitation this week as well.…

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Illinois Crop Update – August 8, 2025

  • August 8, 2025
  • Illinois Extension

Steve Brand – Commercial Agriculture Specialist
DeKalb County
Soil Conditions: Near Normal
Conditions over the past 2 weeks have reverted back to being dry with temperatures in the upper 80’s to low 90’s. The corn and soybeans have been progressing very quickly with the increased Growth Degree Units and just enough moisture. As we look at the drought map most of Northern IL remains in the D0 drought with a small area south of Chicago in a D1.…

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Watch the Smart Nitrogen Management Webinar

  • August 8, 2025
  • Todd Gleason

Smart Nitrogen Management: Timing, Rate, and ROI
MRTN | CORN NITROGEN RATE CALCULATOR
Laura Gentry & Gary Schnitkey
Tuesday, August 5th, 2025
11:00 am – Noon CT
Learn how to optimize nitrogen fertilizer rates using the MRTN N-Rate Calculator and application timing to boost profitability and efficiency. Discover PCM’s data-driven insights into nitrogen management on both high- and low-SPR soils.
REGISTER NOW
Upcoming webinars in the PCM Series
–…

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Aug 01 | Weather Update and Market Review

  • August 1, 2025
  • Todd Gleason

 
by Trent Ford, State Climatologist
Illinois State Water Survey | Prairie Research Institute
University of Illinois
We can wrap a bow around a very hot and humid month of July across Illinois. Average temperatures in July were between 2 and 6 degrees above average, and last month will likely be a top 20 warmest July on record statewide. However, the character of the heat was different than past very hot Julys. We did not have several days with temperatures in the triple digits,…

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Illinois Crop Update – August 1, 2025

  • August 1, 2025
  • Illinois Extension

Emily Hansen – Commercial Agriculture Educator
LaSalle County
Soil Conditions: Mildly Wet (soil is wetter than normal, local vegetation is healthy)
The heat and humidity has finally broken today after what feels like a very miserable few weeks. Over the past week rainfall in LaSalle, Bureau, Marshall, and Putnam counties has been sporadic, with some areas seeing nearly 6 inches and others seeing less than an inch. Crops in areas that received less rainfall are still looking a little heat stressed.…

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Red Crown Rot Progressing in Illinois: Symptoms Confirmed in Shelby County Commercial Fields

  • July 28, 2025
  • Boris X. Camiletti

Symptoms of Red Crown Rot (RCR), caused by the soilborne fungus Calonectria ilicicola, are now appearing in commercial soybean fields. As of July 29, 2025, leaf, stem, and root symptoms have been observed in commercial fields in Shelby County, an area with a known history of RCR dating back to 2023. Additional cases have been confirmed in research plots in Madison and Macoupin counties, which also have recurring disease pressure.
In Shelby County,…

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