Corn

Also see: Corn
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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a flooded field
Figure 1. With more rains mid-week Logan Creek left its bank, covering farmland in its path in Dodge County (Photos by Nathan Mueller)

Information and Resources for Flooded Fields

June 28, 2018
Following heavy rains in northeast Nebraska this week, many growers are facing some tough decisions. This offers information and resources to aid in assessment and decision-making.

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Western corn rootworm beetles feeding on a corn leaf
Figure 1. Damage to corn leaf caused by western corn rootworn. (Photo by Robert Wright)

Western Corn Rootworm Beetles Emerging, Time to Scout

June 27, 2018
Corn rootworm beetles started emerging in southeast and south central Nebraska and scouting is recommended. An average of 5-10 beetles per ear usually can seriously affect pollination.

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Corn growing in flooded soil

Flooding and Ponding in Corn

June 22, 2018
Ponding or flooding of fields affects corn differently at different stages, depending on duration of flooding and other factors. Growers should assess the potential for nitrogen loss and increase scouting for corn disease in these fields.

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Cornhusker Economics: Thinking About the Corn Market

June 21, 2018
In the last 20 years Brazil has emerged as a major player in the world's corn market and is now the second largest exporter and third largest producer, challenging US dominance. This week's Cornhusker Economics takes a closer look.

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Hail damaged corn
Corn around V10-11 with leaves stripped due to hail damage. In this case, much of the corn will recover and look better in 10-14 days. Watch stalk bruising to see if stalk rot sets in. There are fields with hail damage at lower stalks with weakened plants that easily break. Soybeans at R1 (beginning flowering) reduced to sticks north of Stromsburg and in Hordville area. Soybeans with damage like this at the R1 stage can have the greatest yield loss in spite of seeing new buds regrowing with the warm weather. Another concern will be weed control going forward. (Photos by Jenny Rees)

Mid-Season Hail Damage Assessments in Corn and Soybeans

June 25, 2021
When severe storms and hail hit your corn and soybean fields, it's important to estimate yield losses to determine the need for future inputs and alternative management strategies. This guide offers steps to evaluate mid-season hail damage and estimate potential yield losses.

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Western bean cutworm moth
Western bean cutworm moth

Using Degree-Day Models to Predict Western Bean Cutworm Flights

June 21, 2018
By using a degree-day model, growers can account for the effect of temperature on insect development and approximate when certain insect stages will occur. See predicted cutworm flights and recommended scouting periods for 14 Nebraska locations.

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USDA NASS Crop Condition & Progress Report for Mid-June

June 12, 2018
This week's USDA NASS Nebraska Crop Condition Report rated corn as 86% good to excellent and soybean, 87%. Progress for both crops was similar to or ahead of 2017 and the average. Winter wheat condition was 68% good to excellent.

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