Honey Locust Leaves Falling

Asked June 19, 2015, 9:14 AM EDT

Our Honey Locust looked great all spring, but now more than half of the leaves are gone. I searched the tree briefly and found one bug (see pictures). The leaves seem to be turning yellow from the veins and falling off. One leaf looked eaten (see photo) but they all didn't look that way. In one section the leaves curled up before they fell. What should we do?

Philadelphia County Pennsylvania trees and shrubs master gardener program honey locust

1 Response

Your Honey Locust is likely suffering from the Honey Locust plant bug which attacks the tree from Spring to June. It results in leaf curling and some defoliation. The following link is a more comprehensive overview and includes recommendations for control. http://ento.psu.edu/extension/factsheets/honeylocust-plant-bug Good luck with your efforts.