Shrub Insects

Tuliptree scale (Toumeyella liriodendri) is a native type of soft scale insect.

Degree Days (DD), also termed Growing Degree Days (GDD), measure how much warmth above a certain threshold has accumulated since the beginning of the year.

White frothy substance on tender plant stems cover spittlebugs as they suck plant juices.

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

You won't see these small black weevils unless you go out with a light at nighttime. They cause classic notching damage on the edges of leaves.

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

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.

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

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

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.