Soybean Insects

Soybean gall midge adult

Soybean Gall Midge: Adult Stage Identified November 7, 2018

The adult of the soybean gall midge, a new pest in north central US soybean production, has now been verified, allowing growers to add a new photo to their "Most Wanted" list for spring scouting.

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Soybean plant infested with orange gall midge.
Figure 1. Soybean plant infested with orange gall midge.

Survey of Orange Gall Midge in Nebraska: A Potential Pest of Soybeans August 23, 2018

A relatively new insect in soybean, the orange gall midge has now been confirmed in 15 eastern Nebraska counties.Growers and consultants are invited to submit reports of orange gall midge in counties where it hasn't previously been identified.

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Soybean stem borer

Scouting for Soybean Stem Borer Damage August 9, 2018

High populations of soybean stem borers may predispose your field to lodging and complicate harvest. Fields with higher levels of injury should be harvested first to minimize lodging losses.

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Soybean aphid

August Prime Time for Soybean Aphids August 2, 2018

Soybean aphid populations can explode in August under favorable conditions. Vigilant scouting is recommended, especially in northeast Nebraska where populations have historically been highest, to allow for timely management decisions.

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Soybean aphid speed scouting app

Scouting and Managing Soybean Aphids August 2, 2018

Recommendations for scouting and managing soybean aphids, including why the 250-aphids-per-plant threshold is used. Two tools―an app and Excel worksheet―can help speed up scouting in the field and indicate when treatment is warranted.

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A guide to estimating soybean leaf defoliation damage

Soybean Defoliators August 1, 2018

Defoliation injury is being reported in soybeans and often can look worse than it is. This illustrated guide to assessing injury can help you get reliable scouting numbers on which to base sound treatment decisions.

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Figure 1. Japanese beetles will first feed on the leaves of soybean (left) or corn. In corn they'll move to the silks (right) when they become available. (Photos by Justin McMechan)
Figure 1. Japanese beetles will first feed on the leaves of soybean (left) and corn. In corn they'll move to the silks (right) when they become available. (Photos by Justin McMechan)

Scout Corn and Soybean for Japanese Beetles June 25, 2018

Japanese beetles are emerging in eastern Nebraska and will continue to emerge for the next couple of weeks. As numbers will be highest in field margins, growers are advised to scout across the whole field before determining the need for treatment.

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Painted lady butterfly by Jim Kalisch

Large Populations of Painted Lady Butterflies August 8, 2017

Reports of painted lady butterflys have been numerous in rural areas, including in soybeans, causing growers to ask if there's likely to be an increase in their soybean leaf-eating caterpillars. Entomologists discuss this question and the insect's life cycle, and offer a "how-to" on estimating leaf defoliation.

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