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Scale Control and Treatment

Scale suck the sap out of plants.  Favorite hosts include: Azalea, Beech, Holly, Tulip Poplar, Magnolia, Yew, Euonymus, fruit trees and numerous conifers such as Hemlock. Look for black, sooty residue on leaves, white specks, cottony masses, wart-like bumps on stems, twigs or branches.

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Scale damage to plants and the timing for treatment varies by type of Scale. Your Giroud Arborist must identify the Scale, evaluate if treatment is required and determine the best timing for treatment. Set up a free estimate today!

Giroud’s insect and disease control libraries provide more information the various problems affecting trees and shrubs in the Philadelphia area.

Common Types of Scale Insects


Beech Scale

Cottony Taxus Scale

Euonymus Scale

Hemlock Scale

Magnolia Scale

Plum Globose Scale

Prunicola Scale

Learn more about Azalea Bark Scale in this video: