CSU Extension Insect and mite pests of honeylocust Whitney Cranshaw Several insects and mites are commonly found on honeylocust trees in Colorado. However, they rarely affect the health of the tree. Honeylocust podgall midge deforms new leaves of honeylocust in late spring. One to two insecticide applications started at the occurrence of first new growth can limit this injury, if necessary.
Late season build-up of spider mites are common on honeylocust.
Water sprays, insecticidal soaps and certain miticides can limit this injury.