Diagnose and Manage Plant Problems

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Updated: October 6, 2021

IPM - Prevent, Identify, and Manage Plant Problems

How to ID, prevent, and manage plant problems in Maryland using IPM
no lawn landscape
Updated: September 22, 2021

How Do You Decide When to Remove a Tree?

Factors to consider when removing a tree.
tree decline - dead branches in canopy
Updated: September 21, 2021

Fruit Disease and Insect Pest Control and Prevention

Growing many types of fruit successfully (especially tree fruits) even for backyard growers requires taking measures to prevent insect and disease problems.
Updated: October 14, 2021

Ornamental Fruit Trees: Identify and Manage Problems

Prevent, diagnose and manage ornamental fruit tree problems
crabapple and apple blossoms
Updated: September 29, 2021

Azaleas and Rhododendrons: Identify and Manage Problems

List of azalea and rhododendron diseases, insect pests, and abiotic problems.
rhododendron bloom
Updated: September 29, 2021

Boxwood: Identify and Manage Common Problems

Diagnose, manage, and prevent common boxwood problems
Updated: September 24, 2021

Why Oak Trees are Declining or Dying

Oak trees are declining for a variety of reasons.
oak decline symptoms
Updated: September 23, 2021

Roses: Identify and Manage Problems

List and descriptions of common rose problems
pink rose blossom
Updated: September 2, 2021

What's Wrong with my Colorado Blue Spruce Tree?

Dr. Dave Clement, University of Maryland Extension Plant Pathologist, explains two common diseases of this popular evergreen tree. 
spruce branches dying - cytospora canker symptoms
Updated: August 23, 2021

Nutrient Deficiency of Trees and Shrubs

Nutrient deficiencies symptoms often appear as a yellowing of leaves in between the veins.
nutrient deficiency symptoms - yellowing leaves on maple tree