cropCENTRAL | Field Crop Production Resources

Insect Observations/Trap Data for the Week Ending 4/27/18

  • April 27, 2018

  • Kelly Estes

Spring insect activity is off to a slow start, but is expected to pick up with the recent warming trend.
Piatt, Madison, Montgomery, and Sangamon counties all recorded significant moth flights this week. Projected potential cutting dates are identified in the map below. Remember, these dates are just estimates, scouting should occur before and after the potential cutting dates.
 
 
True armyworm numbers have been very low. Armyworm traps are just getting going, so reports for this week are broken down into a general area of the state.…

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Black Cutworm Moth Flight Beginning

  • April 23, 2018

  • Kelly Estes

Soil temperatures and field activity are increasing along with moth migration from the south. Insect traps (figure 1) are out around the state and we’ve been capturing both true armyworm and black cutworm moths for over a week. In fact, we recently had our first significant black cutworm moth flights recorded in Montgomery and Champaign counties (figure 2).  We expect activity to increase with both of these insects over the coming weeks. As both corn and soybean planting progress,…

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The 2018 small grains fungicide sheet is now available

  • April 20, 2018

  • Nathan Kleczewski

We have published the 2018 small grain fungicide recommendation guide.  Please find a link to the guide and more information at the Illinois Field Crop Disease blog, which can be accessed by clicking here
Email alerts to new posts on the Illinois Field Crop Disease Blog can be found by subscribing for updates, which is located at the right side of the webpage.…

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Positive Signs after a Slow Start to Corn Planting

  • April 19, 2018

  • Emerson Nafziger

Parts of Illinois received some precipitation for the third Sunday in a row (starting with Easter) on April 15, and in a few places, also for the third Sunday in a row, it came partly in the form of snow. That streak should end this weekend, and less rain and warmer temperatures are predicted to move in for the rest of April.
Some ammonia went on late last week and there was planting activity in places,…

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Slug Management in Illinois Field Crops

  • April 19, 2018

  • Nick Seiter

Authors: Nick Seiter, Talon Becker, and Nathan Johanning
Slugs can be a difficult pest to manage when conditions are favorable for them, which has been the case often (particularly in southern Illinois) over the last couple of years. These mollusks can damage both corn and soybean early in the season, along with a variety of other crops; however, they have the potential to be especially problematic in soybean, where they can kill the cotyledons and ultimately reduce stands.…

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Cool season viruses in wheat

  • April 14, 2018

  • Chelsea Harbach

The following is posted on behalf of Dr. Nathan Kleczewski, Field Crops Pathologist for Growmark. This content is from the Field Crop Disease Hub webpage Dr. Kleczewski curated. 
Currently, most small grains are approaching jointing or just past jointing in many parts of the state.  Now is the time that you most likely will start to see early season viral diseases in some fields, specifically Wheat Soilborne Mosaic Virus and Wheat Spindle Streak Virus.…

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N Rate Calculator Updated

  • April 11, 2018

  • Emerson Nafziger

Last month (March 2018) we used data from 2017 N rate response trials to update the N rate calculator that provides best-estimate N rate guidelines for different regions and previous crops (corn or soybean) in Illinois. The updating process, which is currently being done by spring each year in Illinois, involves adding the new data and taking out some of the older data.
Many people understand the idea of using data from previous research to try to predict how a management factor will work the next time (in this case,…

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Stripe Rust in S. Illinois

  • April 11, 2018

  • Nathan Kleczewski

I received notice of stripe rust in S. Illinois today.  Stripe rust is an important disease affecting wheat.  Please find an article on this disease and management by clicking here.  
If you locate stripe rust in your field please tweet a picture to me (@ILplantdoc) or email (nathank@illinois.edu) with the wheat variety, growth stage, and approximate percent of field infected.  This information will be useful to IL wheat producers this year and in upcoming seasons.…

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Stripe Rust of Wheat on the Move

  • April 11, 2018

  • Chelsea Harbach

The following is posted on behalf of Dr. Nathan Kleczewski, Field Crops Pathologist for Growmark. This content is from the Field Crop Disease Hub webpage Dr. Kleczewski curated. 
Stripe rust was reported out of Gallatin County this morning.  It is important that you understand this disease and how it works, so that you can make the appropriate management decisions.  This article will discuss the pathogen that causes the disease, symptoms, and some general management guidelines.…

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Early-Season Management of Soybean

  • April 10, 2018

  • Emerson Nafziger

If the old saying that rain on Easter means that it will rain on the next seven Sundays applies to snow, we’re in trouble – it snowed across a wide swath of Illinois on Easter Sunday (April 1) and also on April 8.
We had enough dry weather in March to allow some ammonia to go on early, but there has been little opportunity for field work over the last six weeks. Rainfall over the past month has been below normal for the northern third of Illinois and above-normal in the southern half of the state,…

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