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Looking for Phyllachora samples on grasses- need your help!

Last year we started a project focusing on determining origins of Phyllachora maydis, the causal agent of tar spot of corn, in the United States.  As part of this project, we need to collect Phyllachora species from different hosts and areas. … Read more

A request for 2019 yields

On October 17, 2019, the UI College ACES put out a news release that described an effort to gather yields from a lot of Illinois corn and soybean fields in 2019. We’re doing this because of the unique opportunity we have to try to get a handle on how planting date affected yields in 2019, so we know better what to expect if and when planting is this late again.Read more

Harvest time is not the time to determine if a disease affected your crop

It happens every year.

A field is about to be harvested and something is awry.  Perhaps the plants are lodged, ears are poorly filled, or pods shrunken.  What happened to my crop?

From a plant disease perspective, it is nearly impossible to provide any useful information to the producer. … Read more

Soil temperatures and fall ammonia application

According to NASS, Illinois producers harvested 36 percent of the corn crop and 52 percent of the soybean crop by October 20. That’s still behind the average pace of harvest, but harvest continues in many areas this week, and as it progresses, fields in many areas are becoming available for fall field work to begin.… Read more

Why was tar spot less of an issue in 2019 and what does this mean for 2020?

Tar spot was a minor nuisance in Illinois this year, with many areas only affected to a mild degree.  Why did we see less tar spot in 2019 and what does this mean for 2020?  Click here to read the new article posted on the Illinois Field Crop Disease Hub.… Read more

Fall fertilizer considerations in 2019

The high number of prevented-planting fields in some areas, the late start to harvest, and the inability to apply P and K fertilizer as planned last fall or this past spring combine to raise a number of questions about fall application of P, K, and lime over the next few months.… Read more

Tips for small grain planting in an odd 2019 field season.

Soon many producers will be starting to plant small grains.  Below is my “Top six” list of important things to consider when planting wheat and other small grains in the coming weeks.

1) Ensure that you remove green bridges at least 10 days prior to planting. … Read more

Insect monitoring in soybean: what to look for during pod fill

At this point in the season, most of our insect monitoring efforts are focused on soybean. There are several pests that can damage soybean during pod fill, and proper scouting is necessary to identify and, occasionally, control these insects.… Read more

Corn and soybean crops limp towards the finish line

After the worst start to a cropping season in decades, mid-season lack of rain in parts of Illinois, and season-long low crop ratings, it’s time to take a look at what comes next as the 2019 cropping season moves into its final stages.… Read more

Late season tar spot- what is on the horizon?

There has been some chatter about tar spot starting up a bit in Northern Illinois corn fields.

Tar spot risk map as of 9.3.19. Most fields are near or past R5 in many of the areas in question.… Read more