Also see: Corn
Spider mite damage to soybean leaves.
Spider mite damage to soybean leaves.

Identifying Spider Mite Damage and the Species Responsible

July 22, 2020
We are starting to get more reports of spider mites damaging corn and soybeans in Nebraska. Because many other things can cause similar discoloration, it is important to check leaves closely to make sure mites are actually causing the damage.

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Figure 1. Twospotted spider mites on a leaf and in a web. Often spider mites may be almost imperceptible on a leaf, but before more visible against their silk-like webs. (Photos by Jim Kalisch)
Figure 1. Twospotted spider mites. Almost microscopic in size, the spider mites may be imperceptible on a leaf, but become more visible against its silk-like webs. (Photos by Jim Kalisch)

Managing Spider Mites in Corn and Soybean

July 22, 2020
Recommendations for managing spider mites in corn and soybean, including treatment thresholds, insecticides as well as discussions on the potential impact of beneficial insects, diseases, and insecticide applications.

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Crop Progress Report for July 20

July 20, 2020
Corn is progressing near the five-year average with 61% silking, while soybean is progressing ahead of average with 75% blooming and 31% setting pods. Both crops declined slightly in condition since last week according to the USDA’s National Agricultural Statistics Service. The winter wheat harvest is progressing ahead of average at 79% complete.

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aerial pesticide application from a plane

Considerations for Foliar Fungicide Use in Corn

July 17, 2020
Fungicide use in corn has become increasingly popular for many farmers for a number of reasons. But, it becomes a more difficult decision when corn prices are low and some producers are looking for ways to reduce input costs when profit margins are narrow.

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corn yield forecast chart 2020

2020 Corn Yield Forecasts as of July 14

July 16, 2020
Although it is still too early to make strong inferences about end-of-season yields for irrigated corn, there is a relatively high probability for near-average yields for a majority of sites.

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Southern rust on a corn leaf

Southern Rust of Corn Confirmed in Southeast Nebraska

July 16, 2020
Southern corn rust was confirmed on corn leaf samples from Fillmore, Nuckolls and Johnson counties in southern Nebraska this week. Warm, humid conditions may favor disease development, so fields in this area should be monitored frequently in the coming weeks.

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watermark sensors installed in a corn field

Crop Insurance and Irrigating Storm Damaged Fields

July 16, 2020
With recent storm damage, the following are resources and considerations when it comes to crop insurance and irrigating storm damaged fields.

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corn knocked down by high winds

Wind-Damage to Corn

July 16, 2020
Prior to storms July 8-9, plants were nearing tassel, a critical time for photosynthesis and pollination. These storms resulted in “flattened” corn from lodging/leaning in addition to bent and snapped plants. "Recovery" depends on a variety of factors.

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