Oystershell scale is a minuscule yet troublesome insect that poses significant threats to plants in Calgary. In this article, we explore oystershell scale treatment Calgary strategies and Oystershell Scale control, providing comprehensive insights and practical tips for managing and preventing these pests. Oystershell scale insects, scientifically known as Lepidosaphes ulmi, primarily feed on plant sap. They commonly infest trees and shrubs such as lilacs, cotoneaster, and fruit trees, attaching themselves to bark, branches, and sometimes leaves. Identified by their oyster-shaped protective shells, these scales weaken plants by draining their vital fluids.