Gall Midge Species
Hessian fly (Mayetiola destructor), an agricultural pest in the Cecidomyiidae family. Photo: Scott Bauer, USDA-ARS.
Figure 1. Gall midge larvae feeding in a soybean stem near the base of the plant, Nebraska, August 8, 2018. Photo: Jessie Alt, Pioneer Research Scientist.
Figure 2. Gall midge larvae feeding in a soybean stem at the soil surface, South Dakota, August 8, 2018. Photo: Curt Hoffbeck, Pioneer Field Agronomist.
Figure 3. Gall midge larvae feeding in soybean stems. Larvae turn bright red or orange as they mature, Iowa, August 3, 2018. Photo: Jessie Alt, Pioneer Research Scientist.
Figure 4. Gall midge larvae feeding in soybean stems. Photo: Ryan Rusk, Pioneer Sales Professional.
Figure 5. Galls on a soybean stem due to gall midge infestation (left). Stem girdling resulting from prolonged feeding (right). Photos: Jessie Alt, Pioneer Research Scientist.
Figure 6. Galls on a soybean stem near the soil surface due to gall midge infestation, Nebraska, August 8, 2018. Photo: Jessie Alt, Pioneer Research Scientist.
Figure 7. Dead soybean plants due to gall midge injury along the edge of a soybean field. South Dakota, August 8, 2018; Photo: Curt Hoffbeck, Pioneer Field Agronomist.
Figure 8. Dead soybean plants due to gall midge injury near the edge of a soybean field. Approximately 95% of plants in this area were dead. Iowa, August 3, 2018; Photo: Jessie Alt, Pioneer Research Scientist.
Figure 9. Gall midge injury several hundred feet into the interior of a soybean field. Approximately 50% of plants were dead; all live plants were infested with gall midge larvae. Iowa, August 3, 2018; Photo: Jessie Alt, Pioneer Research Scientist.
Figure 10. Injured and dying plants in a field infested with gall midge, Nebraska, August 8, 2018. Photo: Jessie Alt, Pioneer Research Scientist.
Author: Mark Jeschke
Contributors: Curt Hoffbeck, Matt Essick, Jessie Alt, Ryan Rusk
August 2018
The foregoing is provided for informational use only. Please contact your Pioneer sales professional for information and suggestions specific to your operation. Product performance is variable and depends on many factors such as moisture and heat stress, soil type, management practices and environmental stress as well as disease and pest pressures. Individual results may vary.