Shrub Insects

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Updated: September 16, 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 20, 2021

Hydrangea: Identify and Manage Problems

Hydrangeas (Hydrangea spp.) are popular flowering shrubs in Maryland summer gardens.
blue hydrangea blossoms
Updated: September 8, 2021

Cottony Camellia Scale on Shrubs

A black sooty film covering the top side of shrub leaves can indicate a problem with scale insects.
cottony camellia scale on yew
Updated: September 3, 2021

Diagnostic Chart of Azalea and Rhododendron Problems

A simple chart of symptoms and possible causes
Updated: August 25, 2021

Boxwood: Growing and Diagnosing Common Problems

Diagnose, manage, and prevent common boxwood problems
Updated: August 23, 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 14, 2021

Asiatic Garden Beetle

What are the medium brown beetles drawn to outdoor lights on summer nights?
Asiatic garden beetle
Updated: July 6, 2021

Aphids on Trees and Shrubs

Aphids are small green insects that suck plant juices from almost all plants at one time or another.
aphids on rose bud
Updated: June 21, 2021

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.
cottony camellia scale
Updated: June 21, 2021

Euonymus Scale on Shrubs

A dusting of a white substance on the leaves of euonymus is evidence of an infestation of euonymus scale.
euonymus scale