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Shrub Insects
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Updated: September 11, 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.
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.
Updated: February 24, 2023
IPM - Prevent, Identify, and Manage Plant Problems
How to ID, prevent, and manage plant problems in Maryland using IPM
Updated: October 2, 2024
Box Tree Moth
Be on the lookout for a new pest of boxwoods. Box tree moth caterpillars chew the leaves of boxwood plants and can cause complete defoliation. Boxwoods are their only host plant. This pest has been found in several US states, but it is not in Maryland yet (as of August 2024). If you find it, please report it to us.
Updated: July 1, 2024
Soft Scales on Trees and Shrubs
Just like armored scales, soft scales are sucking insects of a wide variety of plants that can be challenging to control.
Updated: June 10, 2024
Rose: Identify and Manage Problems
List and descriptions of common rose problems
Updated: May 2, 2024
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: April 15, 2024
White Prunicola Scale
White Prunicola Scale (Pseudaulacaspis prunicola) is a non-native type of armored scale insect that can be difficult to manage.
Updated: March 29, 2024
Cherry Laurel: Identify and Manage Problems
Cherry laurel shrubs are widely grown evergreens but are vulnerable to several problems. Shrubs can be damaged by pest and disease issues as well as stress from their environment. Learn how to care for these shrubs and manage conditions that cause damage.
Updated: February 8, 2024
Introduction to Scale Insects
There are many scale insects that feed on plants. They are often overlooked because they are immobile but they can cause serious damage to all types of plants.
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