https://soybeangallmidge.org/new-page daily 1.0 2026-05-30 https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/1599338751429-XBNEJN58HMURT6O7B5CR/IMG_0779.jpg Home https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/ba9e41e8-e993-4390-a293-b58c2e4f6383/IMG_0816.jpg Home - First Adult Emergence of 2026 Season Reported in NE May 30th, 2026 The first soybean gall midge adult emergence of the 2026 season has been confirmed on May 29th at a monitoring site near Talmage in Otoe County, Nebraska, where a single adult male was collected (see emergence map below). At this time, no adult emergence has been detected in Iowa, South Dakota, or Minnesota. Except for some soybean fields planted in April, most soybean fields are not yet at the V2 growth stage when stem fissures begin to form, and plants become susceptible to soybean gall midge infestation. Soybean prior to V2 are not susceptible to infestation. Before considering an insecticide application, use the following checklist: • Is the field adjacent to a soybean field with soybean gall midge pressure from the previous year? • Are soybean plants at the V2 growth stage? • Is adult emergence occurring in your area based on the emergence map and alerts? If an application is being considered, use a product containing a pyrethroid active ingredient. Applications only need to target the field edge, generally within the first 60–100 feet of the field. However, insecticide efficacy for soybean gall midge management has been inconsistent across locations and years. We will continue to provide emergence updates and monitor your local soybean growth stages as emergence continues. https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/c165fa34-7f74-45b1-8d16-1198108f34ce/5.29.2026+Map+Current.png Home - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/1752868698182-N1KNDI3S8T9583E14R95/IMG_2749.jpg Home https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/1752253771495-EN2JOLHL5AB642QVCX8Y/IMG_2673.jpg Home https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/1752253774175-LMCNNWD5RNHZW97GX6QL/IMG_2676.jpg Home https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/7fa2f02f-d9b6-4275-a560-b6dcc0bf4244/IMG_0826.jpg Home - Make it stand out Wilting and dead plants from soybean gall midge feeding in Lancaster County, NE. Photo taken on July 19th, 2024. Credit: Justin McMechan https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/e06b595d-b6be-4659-9506-c50863a80314/IMG_2118.jpg Home - White larvae found on soybean plants near Mead, NE on June 14th, 2023. Figure 1. Cass county field with significant plant injury from soybean gall midge. Photo taken by Justin McMechan. https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/1599345236494-VNXPGKLROKYDDTNYVINX/IMG_072.jpg Home - Unmanned aerial vehicle photo of soybean gall midge injured field in Cass County, NE taken on August 26th, 2020. Figure 2. https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/8a5bfccb-2031-4b93-adcc-3fa06e70713f/SGM+Larvae+2023.jpg Home White and orange larvae found on soybean near Mead, NE on June 19th, 2023 https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/1591220396560-46D9GB1AZBWIH838FTTL/SGM+photo.png Home - Significant field injury and 3rd instar larvae on soybean plant https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/1591227801141-2BD5MKPGBKXECHQJ03JO/IMG_0521.jpeg Home - Soybean Gall Midge Adult Emergence Cages in Last Year's Soybean Field https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/1591227916810-MKJNIW8MOT6GIZVM67W2/white+sgm.png Home - Early Instars of Soybean Gall Midge https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/1591220426103-K24T9Q0DZRC2J52V56KJ/IMG_3401+%281%29.jpg Home - Final instars and blackening of soybean plant at base from feeding https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/1591220494167-X1BBANUCVV4FMWSUK3W8/Figure+2.jpg Home - Adult Soybean Gall Midge: Size and Key Characteristics https://soybeangallmidge.org/scouting-for-soybean-gall-midge daily 0.75 2023-02-20 https://soybeangallmidge.org/soybean-gall-midge-distribution daily 0.75 2026-04-02 https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/c2df0406-be8a-4d2c-ba3f-e4a8909da74d/2025+US+Map+SGM+8.21.2025.png Soybean Gall Midge Distribution 185 counties from 7 states (ND, MN, SD, IA, NE, KS, and MO) have been documented as infested as of 8/21/2025. Color coding indicates the first year infestation was documented in the county, and is not a reflection of the intensity of infestation or injury from SGM. Counties with white stripes in NE and MN are areas where SGM was only on sweet clover. 2025: 5 counties in Iowa. 3 counties in Minnesota. Dashed lines indicate that larvae have only been found on sweet clover. https://soybeangallmidge.org/contacts daily 0.75 2026-02-23 https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/1599393933550-OOHAC7JYWHLQB4J5EJS3/McMechan%2BPhoto.jpg Contacts - Justin McMechan - Crop Protection and Cropping Systems Specialist 105B Entomology Hall, Lincoln, NE 68583-0816 402-472-2312 Email: justin.mcmechan@unl.edu Twitter: @justinmcmechan https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/1599393849383-YSKRTOLUTI2A45QVFLE3/Erin+Hodgson.jpg Contacts - Erin Hodgson - Extension Entomologist 2005 ATRB, 2213 Pammel Dr., Ames IA 50011 Email: ewh@iastate.edu | Phone: 515-294-2847 Twitter: @erinwhodgson https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/1599395273322-Z63WOETRFXI3GYODJ8W4/Robert+Koch.jpg Contacts - Robert Koch - Extension Entomologist 530B Hodson Hall, 1980 Folwell Ave., St. Paul, MN 55108 Email: koch0125@umn.edu https://images.squarespace-cdn.com/content/v1/5da2457001106247e5fb9ff2/1599417263877-91JFX3IUNWPD00U0TEOK/Adam%2BVarenhorst.jpg Contacts - Adam Varenhorst - Extension Field Crop Entomologist 308 Berg Agricultural Hall, Brookings, SD Email: Adam.Varenhorst@sdstate.edu | Phone: 605-688-6854 Twitter: @SDSUExt_Insects https://soybeangallmidge.org/sign-up-for-network-updates daily 0.75 2023-02-20 https://soybeangallmidge.org/notifications daily 0.75 2026-02-04 https://soybeangallmidge.org/soybean-gall-midge-series-videos daily 0.75 2026-04-27