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Shrub Problems - Nonliving

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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: March 14, 2023

Excess Mulch Problems

Too much mulch can cause problems for trees and shrubs
mulch volcano - too much mulch at the base of a tree
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: June 7, 2024

Phytotoxicity: Chemical Damage to Garden Plants

Plants can be damaged by chemicals in pesticides, cleaning products, and gas exhaust.
roses with brown petals and spray residue
Updated: May 23, 2024

Drought and Excessive Heat Stress

Prolonged periods of drought or high temperatures may cause temporary or permanent damage to landscape plants.
drought symptoms on stewartia
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.
Planted row of cherry laurel shrubs
Updated: January 5, 2024

Winter Damage on Landscape Plants

A more detailed look into the effects of winter damage on trees and shrubs in the landscape.
snow damage on tree
Updated: June 20, 2023

Boxwood Decline

Boxwood "decline" is used as a catch-all phrase for poor boxwood growth, which is caused by a combination of factors.
Significant dieback on a boxwood
Updated: June 12, 2023

Azaleas and Rhododendrons: Identify and Manage Problems

List of azalea and rhododendron diseases, insect pests, and abiotic problems.
rhododendron bloom
Updated: June 6, 2023

Herbicide Damage to Trees and Shrubs

Herbicide damage to plants can cause twisted or distorted foliage.
herbicide injury on sycamore tree