Corn

Also see: Corn
Southern rust on a corn leaf

Southern Rust of Corn Confirmed in Nebraska July 20, 2018

Southern rust has been confirmed in corn in three eastern Nebraska counties this week. Corn fields should be scouted soon and frequently in the coming weeks for this and other diseases in case treatment is necessary.

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Corn plots 7-9-18
Corn plots at the South Central Agricultural Laboratory near Clay Center on July 9, 2018. (Photo by Roger Elmore)

2018 Corn Yield Forecasts as of July 11: Higher Temperature Led To Faster Corn Development July 13, 2018

Corn yield forecasts and crop growth stage estimates for the US Corn Belt, based on crop modeling and local input, start up this week for 2018. Corn development is well ahead of normal, with most sites in the central and southern fringes of the Corn Belt in the silking or grain-filling stages.

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Corn at pollination

Q&A: Will Fertigation Now Endanger Corn Pollination? July 12, 2018

After heavy rains in some areas created increased potential for nitrogen leaching, one farmer asks whether fertigating now will endanger pollination.

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Western bean cutworm moth
Figure 1. Western bean cutworm moth (Photos by Julie Peterson)

Scouting and Treating Western Bean Cutworm July 11, 2018

Western bean cutworm egg masses have been reported on field corn in a number of locations across the state this week. Here's what to look for in the field, treatment thresholds and recommendations.

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Map of vegetative health index in the Corn Belt  for July 8, 2018

Temperature/GDD Trend Indicates Early Corn Maturity July 9, 2018

A cool start to the crop season followed by two months of above normal temperatures appears to be pushing Nebraska's corn crop to an earlier than normal maturity.

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Wheat being combined
About 25% of the state's wheat had been harvested as of July 9, well below the 47% that had been harvested by this time in 2017 but near the five-year average of 27%. (Photo by Gary Stone)

31% of Corn Silking, Well Ahead of Average; Soybean on Average July 9, 2018

Corn condition rated 21% excellent, 65% good, 11% fair, 2% poor, and 1% very poor for the week ending July 8, according to the USDA's National Agricultural Statistics Service. Corn silking was at 31%, ahead of 13% both last year and for the five-year average.

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Goss's bacterial wilt and blight and northern corn leaf blight on the same corn leaf.
Figure 1. Goss’s bacterial wilt and blight (top) and northern corn leaf blight (lower) lesions may be easily confused. Note the darker water-soaked appearance of the Goss’s wilt lesion and presence of the dark freckles. The northern corn leaf blight lesion is tan in color and has rounded ends. (Photos by Tamra Jackson-Ziems)

Differentiating Corn Leaf Diseases June 29, 2018

Symptoms of various corn leaf diseases can look very similar in the early stages. Here's how to differentiate one from another of those recently reported in the state.

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