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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. Observed under magnification, tiny, black fungal survival structures called microsclerotia can help in diagnosing charcoal rot.
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Tillage and continuous soybean production favor charcoal rot at the NWIARDC

Last week's blog post was about several soybean diseases that have been recently observed in Western Illinois. Another disease that may be affecting soybeans in Western Illinois is called charcoal rot. The fungus ( Macrophomina phaseolina ) that causes charcoal rot can cause disease in many different plants...

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Figure. Foliar symptoms of sudden death syndrome and brown stem rot are very similar: yellowing and browning of the leaf tissue between the veins.  Plants suffering from brown stem rot often retain their leaves after death, while those suffering from SDS may lose their leaves but retain petioles.  The best the two diseases is to split open the stem length-wise. (Photo: Daren Mueller, Iowa State University,  Bugwood.org).
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Dying soybeans: Plant maturity or plant disease?

Posted by Angie Peltier - Disease

While some earlier planted soybeans are starting to yellow and drop leaves in Western Illinois, it is also important to be on the lookout for soybean stem and root diseases. A seemingly unaffected field can actually be disguising plants that are suffering from stem or root diseases. Taking a look below the canopy can reveal plants that have already wilted and died.  Disease symptoms indicate th...

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Figure. Cover crops were on display for attendees at the 32nd Annual NWIARDC Field Day.
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Cover crops: planting date and soil moisture considerations

Cover crops: From antiquity to the present. Cover crops are plants that are grown between cash crops with the purpose providing environmental services like soil and water conservation ( Figure ). Cover crops have been used by diverse people and cultures throughout history; from more than 3000 years ago in China, to Thomas Jefferson at the time of our nation's fou...

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Figure. Drought conditions map released by the National Drought Mitigation Center (September 3, 2013). Key: White = normal, Yellow = abnormally dry, Tan = moderate drought, Orange = severe drought.
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August 2013 weather summary and 2013 harvest considerations

Weather summary. After the wet spring, June, July and August all saw precipitation totals much below the thirty year average ( Figure and Table ).  At the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC) the last appreciable rainfall occurred at the end of July, with August precipitation totaling only 0.18 inches ( Table...

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