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Shrub Insects

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Updated: October 17, 2024

IPM - Prevent, Identify, and Manage Plant Problems

How to ID, prevent, and manage plant problems in Maryland using IPM
no lawn landscape
Updated: October 17, 2024

Crapemyrtle Bark Scale in Home Gardens

Crapemyrtle bark scale (Acanthococcus lagerstroemiae) is a non-native type of soft scale insect that can be difficult to manage.
a branch covered in crapemyrtle bark scale
Updated: August 12, 2024

Boxwood: Identify and Manage Common Problems

In Maryland gardens and landscapes, boxwood leafminer, Volutella blight, and winter injury are among the most common problems people experience with their boxwood plants. Use this resource to diagnose, manage, and prevent these common problems.
boxwood
Updated: October 21, 2024

Japanese Maple Scale: A Pest of Nursery and Landscape Trees and Shrubs (FS-967)

Unless Japanese Maple Scale (JMS) is monitored carefully and controlled early, populations of this armored scale can spread throughout a nursery or landscape to many species of woody plants and build up to levels that cause dieback and even death of infested plants.
Updated: October 17, 2024

Rose Chafer Beetle on Shrubs

Skeletonized leaves of some deciduous plants might indicate rose chafer beetle feeding damage.
adult rose chafer beetle
Updated: October 17, 2024

Aphids on Trees and Shrubs

Aphids are small green insects that suck plant juices from almost all plants at one time or another.
aphids on rose bud
Updated: October 17, 2024

Japanese Beetles on Trees, Shrubs, and Flowers

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.
japanese beetles on rose flowers
Updated: October 17, 2024

Conifer Bark Beetles on Trees and Shrubs

There are multiple bark beetles that may cause damage to needled evergreen trees.
pitch tubes produced by southern pine beetles
Updated: October 17, 2024

Euonymus Scale

A dusting of a white substance on the leaves of euonymus is evidence of an infestation of euonymus scale.
euonymus scale
Updated: October 17, 2024

Tree and Shrub Galls

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.
leaf gall