Soybeans were scouted at the R2/3 growth stage and soybean stems were observed to be snapping at the base. This was noticed at least once in about every 10 plants. These soybeans were planted in June following a wheat crop.
This injury was confirmed by an NC State Extension Specialist as damage from Threecornered Alfalfa Hoppers. Weakening and breaking of soybean stems as well as lodging are symptoms associated with damage from threecornered alfalfa hoppers. Recommended treatment to control this pest can include using a pyrethroid insecticide, along with continued scouting.