Euonymus Scale Unaspis euonymi

Euonymus Scale, like most scale insects, sucks the sap out of its host plant and a bad infestation can severely damage the host. As its name indicate Euonymus Scale attacks euonymus plants, especially Euonymus japonica (as here).

The males are long (if 2mm can be called long) and white with translucent, flared sides. The females are larger (3mm length), brown rounded triangular blobs - shown near the centre of the picture above right. They are often on the brown branches and difficult to see.

The brown females above seem to have a spider's webbing across. The nymphs are tiny orange-brown spots - shown above right.