skip to Main Content

Is Fall a Good Time to Apply Nitrogen?

  • September 30, 2020
  • Emerson Nafziger

Applying anhydrous ammonia in the fall to provide N to the corn crop the following year has a long history in Illinois and in other parts of the Corn Belt where rotation, tillage, and manure management practices allow it.  Fall application means getting a major field operation done when soil conditions are generally more favorable than they are in the spring, and it helps to spread the work load across more months. Historically, the cost of ammonia has also been lower in the fall than in the following spring,…

Read This Article

Weather and the 2020 Illinois Corn and Soybean Crops

  • August 5, 2020
  • Emerson Nafziger

What a difference July rainfall makes. The U.S. Drought Map based on data through July 28 showed that only six percent of Illinois was rated as abnormally dry or with moderate drought, down from nearly 19 percent two weeks earlier. Above-normal rainfall over the past week in the southern half of Illinois will erase at least half that area, and with cooler weather this week, crop stress should be minimal during the first half of August,…

Read This Article

post on fungicides for hail damaged crops

  • July 12, 2020
  • Nathan Kleczewski

That was one heck of a storm yesterday.  Many fields throughout East central Illinois were severely affected by nickel sized hail.  Although my three year old stated that we should, “use some tape” to fix the damaged tissues, some will consider fungicide applications.  A new post on the subject can be found here. …

Read This Article

UIUC Field Crop Extension Conferences- Sign up today!

  • December 19, 2019
  • Nathan Kleczewski

What do you need to know for the 2020 growing season? The University of Illinois will address several key topics at four regional conferences around the state in January and February. The meetings will provide a forum for discussion and interaction between participants, University of Illinois researchers, and Extension educators.
Conference dates and locations are:
Jan. 22 DoubleTree by Hilton, Mount Vernon
Jan. 29 Brookens Auditorium at University of Illinois, Springfield
Feb.…

Read This Article

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

  • October 30, 2019
  • Nathan Kleczewski

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.  Many pathogens that can cause crop diseases are also excellent saprophytes.  That means they utilize dead or dying plant tissues for nourishment.  Consequently, when plants prematurely senesce,…

Read This Article

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

  • September 14, 2019
  • Nathan Kleczewski

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.  This season, prevent plant acres may have favored the development of grassy weeds and other potential hosts of aphids that transmit barley yellow dwarf (BYDV) virus in small grains.  Aphids acquire BYDV upon feeding,…

Read This Article

Diagrams to help you rate foliar disease on corn

  • August 19, 2019
  • Nathan Kleczewski

Many in the agricultural community, as well as researchers annually rate corn for disease as a means to assess hybrid response, hybrid effectiveness, or potential disease level on field productivity.  It can be difficult to rain the eye to accurately measure disease on foliage, and differences in the type and size of the structure or lesion associated with the pathogen varies significantly.  The four links below will direct you to disease area diagrams we developed in order to help you obtain accurate disease severity estimates in your fields.…

Read This Article

New maps for tracking Southern rust in corn (repaired link)

  • July 14, 2019
  • Nathan Kleczewski

Southern rust is caused by a fungal pathogen that does not overwinter in Illinois.  Instead, it blows in from warmer regions during the growing season.  When conditions favor spread and development of this disease significant damage can occur, especially if it arrives before tasseling (VT).  For more information on Southern rust, check out the Crop Protection Network publication by clicking here.  Yesterday our colleagues detected this disease in Southeast Missouri.  With the hurricane/tropical storm remnant pushing northward,…

Read This Article

Avoid the cosmic freakout

  • July 13, 2019
  • Nathan Kleczewski

Today colleagues in Indiana reported tar spot presence in some of their research plots located in North West IN.  They found an extremely low number of stroma (less than 10) when assessing approximately 500 feet of plots.  When you see or read about the report keep a few things to keep in mind:
1) The amount detected was exceptionally low, and not close to the widespread severity we saw early last year.  For example, on  July 5th,…

Read This Article
Back To Top