On the Lookout for the New Sorghum Aphid
|Distribution of white sugarcane aphid in 2013|
We know that this aphid can be found on sorghum, forage sorghums, sorghum x sudan crosses, johnsongrass, sugarcane and occasionally on corn. We do not think there is a significant threat to corn, in part because the aphids now on corn in the Lower Rio Grande Valley do not seem to be in healthy colonies; sorghum and its relatives seem to be far better hosts. Early detection will give us a chance to monitor this aphid and perhaps learn a lot about it, and it will also let us get a jump on some insecticide trials so that we can look for new products. We would appreciate receiving reports of white sugarcane aphid or any unusual aphid problems in sorghum.
Identification of the white sugarcane aphid
The three common aphid species we find on High Plains sorghum are the greenbug, corn leaf aphid and the yellow sugarcane aphid (Sipha flava). The following photos illustrate the recognition and identification characteristics of white sugarcane aphid and each of our common species.
This post was prepared by Pat Porter (Lubbock), (806) 746-4046 and Ed Bynum (Amarillo), (806) 677-5600. Photo credits: White sugarcane aphid by Scott Armstrong, USDA-ARS; Yellow sugarcane aphid, Greenbug, and Corn leaf aphid by Rick Grantham, Oklahoma State University.