Alfalfa and other legumes. Vetch and crimson clover are important overwintering hosts.
The long-legged pea aphid adult is light to deep green with reddish eyes. It has a
body length of 2.0 to 4.0 mm. The cornicles of this aphid are characteristically long
and slender. Pea aphids extract sap from the terminal leaves and stem of the host
plant. Their feeding can result in deformation, wilting, or death of the host depending
upon the infestation level. Plants that survive heavy infestations are short and bunchy
with more lightly colored tops than those of healthy plants. Wilted plants appear
as brownish spots in the field. Moreover, plants are often coated with shiny honeydew
secreted by the aphids, and cast skins may give the leaves and ground a whitish appearance.
Please contact your local county extension office for current information.