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Shrub Insects

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Updated: September 18, 2023

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: March 23, 2023

Crapemyrtle Bark Scale - A New Problem for Home Landscapes

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: February 24, 2023

IPM - Prevent, Identify, and Manage Plant Problems

How to ID, prevent, and manage plant problems in Maryland using IPM
no lawn landscape
Updated: September 18, 2023

Spider Mites on Trees and Shrubs

Webbing on plants with stippled damage on foliage may indicate a spider mite infestation.
boxwood spider mite damage
Updated: September 18, 2023

Boxwood Psyllid Insects

Psyllid insects produce a fluffy white waxy substance on boxwood plants. Leaves at the end of branches may appear cupped and distorted.
boxwood psyllid damage
Updated: September 15, 2023

Armored Scale - Trees and Shrubs

Armored scale insects are a large group of sucking insects that can be tricky to find, identify, and manage.
oystershell scale
Updated: August 24, 2023

Leafminers on Ornamental Plants

Leafminers feed between the upper and lower surfaces of a leaf.
brown puckered leaves of boxwood from leafminer insect damage
Updated: July 27, 2023

Borer Insects on Shrubs

If you see dead and wilted leaves on rhododendron, look at the stem below the damage for borer holes and prune out the damage.
caterpillars eating holes in a wooden branch - peachtree borers
Updated: July 14, 2023

Rose: Identify and Manage Problems

List and descriptions of common rose problems
pink rose blossom
Updated: June 21, 2023

Leafcutter Bees on Shrubs and Flowers

Leafcutter bees cut circular or c-shaped sections from leaves of plants such as redbud, serviceberry, and rose.
redbud tree with holes from leafcutter bees