They emerge in the spring and lay eggs in grasses or soybeans. They move to pecans only as adults. There are four or five generations a year. Nymphs develop on grasses and vegetable crops. The pecan twig girdler is a large beetle with long antennae that girdles twigs and small branches in September.
Females lay clear glassy eggs in slits in the girdled branch.
These branches fall to the ground when the wind blows. Larvae feed in the branch and exit to pupate in the soil. There is only one generation a year. Two species of aphids attack pecans. Yellow and black aphids feed on leaves.