skip to Main Content

Reminder…University of Illinois Weed Science Field Research Tour

  • June 11, 2018
  • Aaron Hager

We would like to take this opportunity to once again extend the invitation to attend the 2018 University of Illinois Weed Science Field Day, to be held Wednesday, June 27th at the University of Illinois Crop Sciences Research and Education Center, located immediately south of the main campus on South Wright Street.  Coffee and refreshments will be available under the shade trees near the Seed House beginning at 8:00 a.m.  The tour will provide ample opportunity to look at research plots and interact with weed science faculty,…

Read This Article

Try togetherness: Study promotes cooperative weed management to curb herbicide resistance

  • June 6, 2018
  • Aaron Hager

The following article was written by Lauren Quinn, media specialist in the College of Agricultural, Consumer and Environmental Sciences at the University of Illinois.  The article describes recently publiched research, lead by Dr. Adam Davis, a research ecologist with USDA-ARS and adjunct professor in the Department of Crop Sciences, that examined cooperative weed management as a tool used against the challenges of herbicide-resistant waterhemp.  The following quote from Dr. Davis succinctly summarizes the research: “The crux of the story is that if you do good stuff and you aggregate it at larger spatial scales,…

Read This Article

Residual Soybean Herbicides Applied Postemergence

  • June 5, 2018
  • Aaron Hager

Soil-residual herbicides are important components of integrated weed management programs.  Reducing the number of weeds exposed to foliar-applied herbicides helps reduce the selection intensity for weeds resistant to foliar-applied herbicides.  Residual herbicides applied with postemergence soybean herbicides also can reduce the need for a second postemergence application.  However, simply applying a soil-residual herbicide does not guarantee the product will provide the desired level or duration of weed control.  Many edaphic and environmental factors influence the level of weed control achieved by soil-residual herbicides.…

Read This Article

Soybean Cyst Nematode: Race Shifts and Grass Cover Crops as a Potential Alternative Control

  • June 4, 2018
  • Talon Becker

Authors: Talon Becker and Nathan Kleczewski
Among the various soybean pests, Heterodera glycines Ichinohe, known by most as soybean cyst nematode (SCN), continues to be a persistent cause of yield loss for soybean producers1.  SCN has been found in every county in Illinois, as well as much of the eastern United States, Puerto Rico, and parts of Hawaii and Canada2 (Figure 1).
Figure 1.

Map of the known distribution of the soybean cyst nematode,…

Read This Article

Seedling diseases of soybeans

  • June 1, 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. 
Soybeans have started to emerge, and as you may expect, this is a prime time to scout fields for early season seedling diseases.  Seedling diseases are caused primarily by fungi or fungal like organisms that , under the correct conditions (moisture, temperature, susceptible variety) can colonize the seed or germinating seedling and cause the seedling to die before it reaches the soil surface,…

Read This Article

Seedling Diseases in Soybeans – Time to Scout!

  • June 1, 2018
  • Nathan Kleczewski

Now is the time that seedling diseases of soybeans will start to be apparent.  Indeed, we have started to see more images of soybeans that may have symptoms of seedling disease.  However, it is important to understand that seedling diseases are complex, and a simple picture often is not sufficient to adequately diagnose the issue.  I wrote a more extensive of seedling diseases of soybean on the Illinois Field Crop Disease Blog, which can be accessed here

Read This Article

Western Corn Rootworm: Adult Sampling and Economic Thresholds

  • May 30, 2018
  • Nick Seiter

Authors: Nick Seiter, Joe Spencer, and Kelly Estes
Based on degree day accumulations, western corn rootworm egg hatch should be underway in much of Illinois (roughly south of Peoria as of May 29; you can view your specific location using the degree day calculator here: https://www.isws.illinois.edu/warm/pestdata/sqlchoose1.asp). We are probably just over a month away from seeing the emergence of the first adult beetles. With low rootworm populations for the last several years, there has been a renewed interest in adult sampling.…

Read This Article

Corn Growth Stage and Postemergence Herbicides

  • May 30, 2018
  • Aaron Hager

The labels of most postemergence corn herbicides allow applications at various crop growth stages, but almost all product labels indicate a maximum growth stage beyond which broadcast applications should not be made, and a few even a state minimum growth stage before which applications should not be made.  These growth stages are usually indicated as a particular plant height or leaf stage; sometimes both of these are listed.  For product labels that indicate a specific corn height and growth state,…

Read This Article

Glume Blotch in Wheat

  • May 24, 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. 
This week we have had several reports of Stagonospora glume blotch in wheat.  This is a fairly common disease that is caused by the fungus Stagonospora (or Parastagonosporanodorum.
The fungus overwinters in/on previously infested wheat residue, and can also be found in infected seed. …

Read This Article

New Crop Protection Network Publication on Proper Fungicide Use for Fusarium Head Blight Now Available

  • May 23, 2018
  • Nathan Kleczewski

The Crop Protection Network is a free, online resource for producers and those in the agronomic community interested in diseases of field crops and their management.  Recently, CPN started adding resources to the site to include diseases of small grains such as wheat.  As part of this effort, we published a publication on how to optimize fungicide applications for Fusarium Head Blight management.  The publication can be accessed for free at the CPN library

Read This Article
Back To Top