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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. Effect of planting date and accumulated growing degree units on corn growth and development.
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Planting progress, planting date and plant development

Planting Progress: 2013 versus 2014. State-wide. According to the USDA National Agricultural Statistics Service, an estimated 95 percent of corn acres have been planted, and 81 percent have emerged as of May 25 . Corn p...

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Figure. Uneven corn emergence at the NWIARDC.
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Uneven corn emergence and yield potential

Corn plants emerged unevenly in some fields at the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC) in 2014. The picture above shows uneven emergence in a field that was cultivated on April 16 and seeded 1.75 inches deep on April 22 ( Figure ). Yield costs associated with uneven emergence. Yield loss can occur when some plant...

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Figure. Palmer amaranth in a soybean field in Kankakee County, Illinois, 2013. The height of the plants can be compared to the mature corn in the background. (Photo credit: Dr. Aaron Hager).
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New "Weed Science" article supports zero tolerance strategy for Palmer amaranth

My fellow Commercial Agriculture – Crops Extension Educator Robert Bellm sent me a recently released article in Weed Science written by Norsworthy et al. (2014) . This article details the results of research designed to study the in-field spread of glyphosate-resistant Palmer amaranth over time. Palmer amaranth seeds travel. A single Palmer amaranth pla...

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Figure. Black cutworm. Note the small, black dagger-shaped marking on each outer wing.
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Beware black cutworms

Posted by Angie Peltier - Insects

Tracking migrating insects. Some important corn pests such as black cutworms, armyworms and corn earworms survive the winter in more southerly regions, migrating northward each spring with the aid of weather systems. Each year, members of the University of Illinois Extension field staff work with the Illinois Natural History Sur...

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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).

April 2014 weather: Soil temperatures and planting progress

Temperature, snowfall and precipitation data listed below were collected at a weather station located a little more than 4 miles from the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC), while soil temperature probes are located at the NWIARDC. Air temperature. The average high temperature in April was 2 degrees below the 30-year average a...

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Figure. Corn planted April 9, 2014.
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Planting date and corn yield

Each year a corn planting date trial is established at the Northwestern Illinois Agricultural Research and Demonstration Center. Planting date studies can provide us with valuable information. For example, in a given year, with its unique weather conditions, we can find out which planting date resulted in the highest grain yields. Additionally, planting date trials over many years can help agro...

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