Corn

Also see: Corn

Extension Crop Reports June 13, 2018

Storm damage, crop progress and pest reports from across the state.

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European corn borer "shot-hole" damge to corn leaves

Scouting and Treatment of First Generation European Corn Borer June 12, 2018

While European corn borer numbers have greatly decreased regionally since the introduction of the first Bt corns, local populations may still cause damage on untraited corn such as popcorn or white corn or in field planted to non-BT corn to take advantage of lower seed costs. These fields should be scouted now.

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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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hail damage to soybean

Extension Crop Reports June 7, 2018

Crop reports for the week ending June 8 from Nebraska Extension educators.

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Bacterial leaf streak and Goss's wilt
Figure 1. (left) Corn leaves with bacterial leaf streak may appear to have a yellow halo around lesions. (right) Recent wet conditions and wounding from hail or storms favor development of Goss's wilt, shown here. (Photos by Tamra Jackson-Ziems)

Conditions Right for Development of Corn Diseases June 7, 2018

Severe weather and wet conditions across much of Nebraska this week may favor increased development of diseases in corn, particularly bacterial leaf streak and Goss’s bacterial wilt and blight. For assistance in correctly identifying diseases, submit samples to the Plant & Pest Diagnostic Clinic.

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Figure 1. USDA NASS reported June 4 that 95% of the state's soybean crop had been planted and 77% had emerged. (Photo by Todd Whitney)

Crop Conditions: Corn 87% Good-Excellent, Soybean 86% Good-Excellent June 4, 2018

With recent rains, Nebraska's corn and soybean crops were faring well across much of the state. Corn condition was rated 78% good and 9% excellent and soybean was rated 78% good and 8% excellent for the week ending June 3.

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Volunteer corn in soybean
Figure 1. Several herbicide options are available for managing volunteer corn in soybean. Management in corn will be more challenging. (Photo by Jenny Rees)

Control of Volunteer Corn in Soybean and Corn June 1, 2018

Volunteer corn is a competitive weed in the corn/soybean cropping system and if not controlled, may result in a yield penalty and contribute to survival of gray leaf spot and western corn rootworm. Consider these options for managing volunteer corn in soybean and corn.

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Clump of volunteer corn in corn
Figure 1. Corn losses last fall are leading to widespread volunteer corn in crop fields this season. If not controlled, they could lead to yield reductions. (Photo by Jenny Rees)

Impacts of Volunteer Corn on Crop Yields June 1, 2018

University research conducted in several Midwest states indicates the impact of volunteer corn on corn, soybean, dry bean, and sugarbeet yields.

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