A close-up of a cluster of barnacles attached to a rock or a hard surface, with rough textures and dark colors, illuminated by light.

Stop Oystershell Scale Before It Scars Your Trees

Utah Tree Pest / By

Cracked Bark? Dying Branches? It Might Be Oystershell Scale.   Oystershell scale The oystershell scale, Lepidosaphes ulmi, is the most damaging scale insect present in Colorado. It develops on the bark of trunks and limbs of a wide range of commonly grown deciduous trees and shrubs, including aspen, ash, cotoneaster, poplars, willow and lilac.   […]

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