This species is most likely to cause injury in young orchards and nursery plantings.
Nymphs are reddish-brown.
Wingless forms overwinter on the roots where feeding continues throughout the year. In early spring, some migrate from the roots to new growth above ground and start colonies on the leaves of twigs and shoots. Several generations of female aphids are produced, with unmated adults giving birth to living young. In early summer, winged forms are produced which migrate to other trees to start new infestations. All above ground colonies usually disappear by midsummer as wingless forms migrate to the roots to feed and overwinter.