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Angie Peltier


Angie Peltier
Former Extension Educator, Commercial Agriculture



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Hill and Furrow

Current topics about crop production in Western Illinois, including field crops research at the NWIARDC in Monmouth.
Figure. Symptoms of northern corn leaf spot on a leaf of a hybrid with a disease score of

Scouting in 2014 can inform decisions for 2015 and beyond

Posted by Angie Peltier - Disease

Although 2014 variety and hybrid selections were made long ago and foliar fungicide decisions are likely already made because of scouting that took place before tasseling, additional scouting throughout the 2014 growing season can continue to provide important information needed for future growing seasons. Scouting corn fields again as kernels fill and before physiological maturity may...

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Clouds and corn

Resilient ag conference now open to crop advisors and farmers - Register by July 28th

CCA Continuing Education Units Available. Certified Crop Advisors can earn continuing education credits through in-person and online attendance of the Resilient Agriculture Conference, August 5-7, in Ames, Iowa. Most conference sessions will be live-streamed, with the exception of the field activities and farmers and crop advisors throughout the upper Midwest are encouraged to att...

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Foliar disease guide

Corn Foliar Diseases: Identification and Management Guide

Posted by Angie Peltier - Disease

As the growing season rolls on, those producers with corn that is beginning to tassel may be thinking about plant disease and whether to add a foliar fungicide to their list of inputs in 2014. Dr. Carl Bradley, University of Illinois State Plant Pathology Extension Specialist, has coordinated corn foliar fungicide trials at many locations in Illinois between 2008 and 2014. He summarize...

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Figure. Brian Mansfield and Marty Johnson scramble to get planter boxes filled before a storm rolls in at the NWIARDC (May 7, 2014).

June 2014 Weather Summary

Posted by Angie Peltier - Weather

Temperature and precipitation data listed below were collected at the Monmouth weather station located a little more than 4 miles from the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC), while soil temperature and moisture probes are located at the NWIARDC. Air temperature. The monthly average high and low temperatures were just slightly...

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Figure. Symptoms characteristic of bacterial blight.
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Soybean leaves in tatters? It might be bacterial blight!

Symptoms. When walking through several of the earlier planted soybean fields at the Northwestern Illinois Agricultural Research and Demonstration Center trifoliate leaflets appeared to be missing significant sections of leaf tissue ( Figure ). Upon closer inspection, on those same leaflets, seemingly random sections of remaining leaflet tissue had angular lesions...

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Figure. Sexual fruiting structures (apothecia) of the fungus that causes white mold of soybean emerging out of a soil clod.
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Closing canopies, flowering soybeans, wet soils, cool temperatures = white mold risk

Posted by Angie Peltier - Disease

White mold fungus. The fungus that causes white mold of soybean is called Sclerotinia sclerotiorum . This fungus spends its life in the soil as hard, black structures called sclerotia. Sclerotia, which resemble mouse droppings, help the fungus survive over harsh winters and dry soil conditions. Under cool, wet, humid, and low-light conditions (conditions which are more lik...

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