Tree and Shrub Pests

Holes in elm and zelkova leaves are eaten by 1/4 inch long elm leaf beetle adults and 1/2 inch long larvae.

Euonymus leaf notcher is an invasive insect and pest of ornamental euonymus plants.

Skeletonized leaves of some deciduous plants might indicate rose chafer beetle feeding damage.

Aphids are small green insects that suck plant juices from almost all plants at one time or another.

Larvae or grubs feed on the roots of Kentucky bluegrass, fine fescues, and other grasses. Adults are brown beetles with metallic green heads that emerge mid-June and feed on more than 275 plant species.

A dusting of a white substance on the leaves of euonymus is evidence of an infestation of euonymus scale.

There are multiple bark beetles that may cause damage to needled evergreen trees.

Corky swollen or unusual growths on tree leaves or branches can be caused by mites, bacteria, fungi, or other insects. They are unsightly but not life-threatening.

Lace bugs hide on the underside of leaves of mostly azalea, Pieris, and rhododendron evergreen shrubs.

Regular inspections of your garden and plants will catch most scale problems before they get out of hand.