Diseases

Corn disease update and farewell

  • June 30, 2015

  • Aaron Hager

Last week, I visited all of the University of Illinois corn variety trials in the northern half of the state.  Gray leaf spot and northern leaf blight were beginning to appear in most of the locations, but were the most obvious at the trial located near Perry, IL (Pike County).
With the amount of rainfall received in the past few weeks, it is not surprising that these diseases were beginning to appear.  Since hybrids differ in their level of susceptibility to these diseases,…

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Stripe rust and Fusarium head blight (scab) concerns in Illinois

  • May 14, 2015

  • Aaron Hager

Stripe rust of wheat has been observed in different parts of Illinois within the last week. Although some varieties have very good resistance to stripe rust, there are still several varieties that are susceptible. Stripe rust is able to flourish under the cooler temperatures we’ve had over the last few days. With rain in the forecast in parts of the state over the next few days, favorable conditions for this disease likely will continue.
Although some wheat fields in the state are already past the critical period for applying a fungicide for protection against Fusarium head blight (a.k.a.…

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2015 Season at the University of Illinois Plant Clinic

  • May 11, 2015

  • Suzanne Bissonnette

What pests will the 2015 growing season feature? Let the Plant Clinic help you diagnose them. Samples havePreview been gradually filling up the lab here at the Clinic in our 40th year of operation. On the field front, there have been concerns with root and virus disease diagnosis in wheat. On the home landscape front, there has been a steady influx of fungal disease.
 
The University of Illinois Plant Clinic accepts samples year-round.…

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Wheat disease outlook

  • April 28, 2015

  • Aaron Hager

As the weather begins to warm up, wheat is beginning to grow at a faster pace.  Symptoms of some diseases also are beginning to appear or will likely be appearing soon.  Below are some diseases to look for right now.
Stagonospora and Septoria leaf blotch: Although caused by two different pathogens, symptoms of these two foliar diseases look very similar and both can be managed with an appropriate foliar fungicide application.  Most results from University of Illinois wheat foliar fungicide trials conducted since 2008 have shown that an application of an effective fungicide for control of Fusarium head blight (scab) when wheat is beginning to flower also provides good protection against common foliar fungal diseases on the flag leaf. …

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Spring Cover Crop Field Day March 26th – Ewing Demonstration Center

  • March 17, 2015

  • Nathan Johanning

Join us on Thursday, March 26th, 2015 for the  Spring Cover Crop Field Day at the University of Illinois Extension Ewing Demonstration Center.  Registration will start at 8:30 a.m. and the program will begin at 9:00 a.m., rain or shine.  The Ewing Demonstration Center is located at 16132 N. Ewing Rd; Ewing, IL 62836, on the north edge of the village of Ewing, north of the Ewing Grade School on north Ewing Road.  Watch for signs.…

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Ewing Demonstration Center Fall Cover Crop Field Day – Nov. 6th

  • October 28, 2014

  • Nathan Johanning

Join us on Thursday, November 6th, 2014 for the the Ewing Demonstration Center Fall Cover Crop Field Day.  Registration and refreshments will start at 8:30 a.m. and the program will start at 9:00 a.m., rain or shine.  The Ewing Demonstration Center is located at 16132 N. Ewing Rd; Ewing IL 62836, on the north edge of the village of Ewing, north of the Ewing Grade School on north Ewing Road.  Watch for signs.
Cover crops have many benefits to the soil,…

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Destructive diseases of soybean – sudden death syndrome and white mold – observed in the state

  • August 27, 2014

  • Aaron Hager

Signs and symptoms of a few soybean diseases have begun to show up in the last few weeks in some areas of the state.  Two of these diseases, sudden death syndrome (SDS) and Sclerotinia stem rot (a.k.a. white mold) certainly are going to cause economic losses in some growers’ fields this year.
Symptoms of SDS that currently are being observed are interveinal chlorosis and necrosis of the leaves (veins remain green while the tissues between the veins turn yellow and then brown). …

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