Diagnose and Manage Plant Problems

Sort by:
Updated: July 22, 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: June 28, 2021

How to Identify, Prevent, and Manage Plant Problems

How to ID, prevent, and manage plant problems in Maryland
no lawn landscape
Updated: July 12, 2021

Orange Aphids on Milkweed

Oleander aphids, (Aphis nerii) are little orange insects that commonly infest milkweed plants.
orange oleander aphids on swamp milkweed
Updated: July 8, 2021

Boxwood: Diagnose, Manage and Prevent Common Problems

Diagnose, manage, and prevent common boxwood problems
boxwood
Updated: July 8, 2021

Insect Pests of Azaleas and Rhododendrons

Lace bug, black vine weevil, borers, caterpillars, leafminer, scale, and whitefly insects are the major insects on azaleas and rhododendrons.
pink rhododendron flowers
Updated: July 1, 2021

Why Oak Trees are Declining or Dying

Oak trees are declining for a variety of reasons.
oak decline symptoms
Updated: June 28, 2021

Wilt Diseases of Vinca

Phomopsis and phoma are wilt diseases on vinca groundcover.
wilting and browning vinca - phoma symptoms
Updated: June 14, 2021

Diagnose Indoor Plant Problems

Symptoms of common houseplant problems.
Updated: June 14, 2021

Diagnose Dogwood Problems - Chart

Easy to use chart to identify problems with dogwood trees.
Updated: May 25, 2021

Anthracnose Diseases of Shade Trees

Distinct lesions patterns along leaf veins are signs of anthracnose disease on shade trees.
anthracnose symptoms - leaf spots on maple