Scale bugs, or scale insects, are small sap-sucking pests that can be a problem in the garden during the spring and summer ...

The Cooperative Extension Plant Clinic can provide information on scale insect control, urban tree care, and other horticultural problems.

2). Adult female covers are called tests (Fig. 3), and can be up to 2 mm wide with a central pale ring. The test is not attached to the body and can be peeled back to reveal the soft-bodied scale ...

Discover how the cochineal insect's red dye influenced civilizations, from the Aztecs to the British redcoats.

White, wooly adults (figure 1, 2) with pink to purple eggs underneath (Figure 3) can be seen in late spring. The first generation was observed in late May through early June using a hand lens or ...

The gloomy scale is a species of armored scale insect (family Diaspidae) that infests many trees but is most associated with maples. These gray-brown insects attach themselves to bark and use ...