The sugarcane aphid (SCA) has now been reported in four counties in Kansas, according to K-State Research and Extension. Sumner, Reno, Kiowa and Haskell counties have reported sightings for 2019. Kansas sorghum producers across the state should begin scouting their fields on a regular basis.
Be sure to to visit K-State Agronomy to remain up-to-date on scouting and treatment best-practices:
- Once a week, walk 25 feet into the field and examine plants along 50 feet of row.
- If honeydew is present, look for SCA on the underside of a leaf above the honeydew.
- Inspect the underside of leaves from the upper and lower canopy from 15–20 plants per location.
- Sample each side of the field as well as sites near Johnsongrass and tall mutant plants.
- Check at least 4 locations per field for a total 4 locations per field for a total of 60-80 plants.