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Will The Corn and Soybean Crops Get Finished?

  • August 8, 2013
  • Emerson Nafziger

Late planting and weather that continues to be cooler than normal into August has many wondering if the corn and soybean crops will reach maturity and harvest moisture within a reasonable time this fall. Crop conditions remain good for both crops, but crop development, including pod formation and filling in soybean and grain fill in corn, remains well behind normal. Corn is 10 days to 2 weeks behind normal, and soybeans are 2 to 3 weeks behind normal.…

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Check Corn Pollination

  • August 2, 2013
  • Emerson Nafziger

We are starting to get reports that corn pollination might not have been as successful as expected in parts of Illinois. While the weather was generally favorable during the peak period of pollination, it was warm during the third week of July, and soil water may have been limiting during this period in some fields. Thus we would expect to see this in the areas with low rainfall in July.
This is not the lack of silking that we saw in many areas under the drought of 2012.…

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Assessing the risk of white mold (Sclerotinia stem rot) of soybean in 2013

  • July 22, 2013
  • Aaron Hager

White mold of soybean (a.k.a. Sclerotinia stem rot), caused by the fungus Sclerotinia sclerotiorum, is a disease that can occur in the northern half of the state in cool, wet years.  The most recent white mold epidemic in Illinois occurred during the 2009 season, where several fields in the northern half of the state were affected.
The white mold fungus overwinters in the soil as, small, black, and dense structures known as sclerotia. …

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Corn and Soybean Crops at Mid-Season

  • July 20, 2013
  • Emerson Nafziger

The third week of July brought above-normal temperatures to much of Illinois. This is expected to be temporary, with temperatures the fourth week expected to return to normal. Because soils in most areas had enough water to carry the crop through the week, we don’t think the high daytime temperatures were much cause for concern.
By July 14, 21 percent of the Illinois corn crop was pollinating. This included most fields planted before May 10 to 15.…

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Brownstown Agronomy Research Center Field Day – July 25

  • July 15, 2013
  • Aaron Hager

The 2013 Brownstown Agronomy Research Center Field Day, presented by the University Of Illinois Department Of Crop Sciences, will be held on Thursday, July 25. Extension researchers and specialists will address issues pertinent to the current growing season. Tours will start at 8 a.m., with the second and third groups leaving the headquarters around 8:20 a.m. and 8:40 a.m. The tours will last about two and a half hours and will be followed by lunch provided by U of I Extension.…

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Stormy weather and Goss’s wilt go hand in hand

  • July 2, 2013
  • Aaron Hager

Goss’s wilt of corn often is most severe after fields are exposed to high winds and/or hail damage, because the causal bacterium, Clavibacter michiganensis subsp. nebraskensis, readily infects corn leaves through wounds.  With the recent storm activity across the state, growers should be on the lookout for the appearance of Goss’s wilt symptoms.  Goss’s wilt lesions on the leaves generally have wavy margins with a water-soaked appearance on the edges of the lesions. …

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Corn Roots, Wet Soils, and Nitrogen

  • June 28, 2013
  • Emerson Nafziger

The June weather pattern in Illinois was variable, and the month is ending with rainfall totals ranging from a little less than normal in parts of western Illinois to nearly double the normal amounts, with some totals as high as 7 to 8 inches, in parts of southeastern and northern Illinois.
While getting rainfall in June is certainly preferable to getting little or none as happened in Illinois in 2012, standing water and wet soils can badly damage a rapidly-growing corn crop.…

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Purple and Yellow Corn Plants

  • June 13, 2013
  • Emerson Nafziger

The corn crop that was planted in May is up and growing in most fields, but there have been numerous reports of fields with uneven plant sizes and colors, including purple and yellow plants. Many are wondering if this will decrease potential yields.
Based on past experience many people expect to see purple corn when soils are cool and dry during early plant growth stages, or in that rare field with low soil test phosphorus levels.…

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How Late Can We Plant Corn and Soybeans?

  • June 11, 2013
  • Emerson Nafziger

The latest report from NASS indicates that 96 percent of the corn and 62 percent of the soybean crop in Illinois had been planted as of June 9. Some of the corn is struggling, however, with 13 percent of the crop rated as poor or very poor. Much of this is due to heavy rainfall, which has caused problems with stands, including areas in fields where the crop has drowned out from standing water. In other cases,…

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Dates and Locations for the 2014 University of Illinois Corn & Soybean Classics

  • June 11, 2013
  • Aaron Hager

The dates and locations for the 2014 University of Illinois Corn & Soybean Classics are set for next January.  Our next series of meetings marks the 17th year of the Classics and will continue the program’s tradition of providing our clientele with the most current and timely information related to crop production, marketing and pest management.
The dates and meeting locations for the 2014 Corn & Soybean Classics are:
▸ January 6 (Monday): Champaign I Hotel and Conference Center
▸ January 7 (Tuesday): Mt.…

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