Sugarbeet Root Aphid
Pemphigus populivenae Fitch

This aphid is found on the roots. It is pale yellow and surrounded by a white, mold-like wax. Several generations are produced on sugarbeet roots each season. When the aphids suck sap from the roots, the leaves become light or yellowish-green, wilt, and sometimes die. Infested beets are usually short and have many hair roots. Host plants: sugarbeets, dock, grasses, poplar.