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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.
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.
Updated: February 24, 2023
IPM - Prevent, Identify, and Manage Plant Problems
How to ID, prevent, and manage plant problems in Maryland using IPM
Updated: September 18, 2023
Spider Mites on Trees and Shrubs
Webbing on plants with stippled damage on foliage may indicate a spider mite infestation.
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.
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.
Updated: August 24, 2023
Leafminers on Ornamental Plants
Leafminers feed between the upper and lower surfaces of a leaf.
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.
Updated: July 14, 2023
Rose: Identify and Manage Problems
List and descriptions of common rose problems
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.
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