Aphids Aphids Full-screen, JPEG images, can be viewed by clicking on the small images. Aphids are small soft-bodied insects. They are one of the most common pest groups of ornamental plants.
Aphids feed in colonies.
They have plump, pear-shaped bodies and two tubes, or cornicles, which project like exhaust pipes from their abdomens. There are many species of aphids, and they feed on all types of vegetation. The white pine aphid feeds on the bark of twigs and branches of Eastern white pine. Heavy aphid infestations can seriously weaken small trees. Aphid colonies may be found on young leaves, new succulent shoots, and twigs or branches.