North Carolina State University researchers are looking into stopping an invasive species of caterpillar that can damage and kill urban trees and shrubs.
Cankerworms are born from the eggs of wingless moths. The moths climb the trunks of trees to nest in the winter.
N.C. State professor and entomologist Steve Frank says these young larvae do most of the damage to trees and bushes that dot the city landscape.
"And then in early Spring just as the leaves are opening on the trees, the cankerworm eggs hatch and the caterpillars start eating the leaves," says Frank.