Oystershell scale is a very secretive little insect that usually goes unnoticed. But despite its tiny size, this insect can cause significant damage in trees or shrubs. Some gardeners aren’t even ...

Oystershell scale has been in America for centuries. Researchers believe the insects hitched a ride on apple trees transported from Europe in the 1700s. Since then, they have mostly afflicted orchards ...

Q: My aspen trees have scale insects on the bark and some disease on the leaves that causes them to drop off early. What can I do? A: The insects are called oystershell scale (Lepidosaphes ulmi) and ...

Dogwood and lilac shrubs are attacked by an insect that is easy to overlook, even if you have thousands of them on your plant. These easy to see but hard to notice pests are scale insects. Scales look ...

Oystershell scale has been in America for centuries. Researchers believe the insects hitched a ride on apple trees transported from Europe in the 1700s. Since then, they have mostly afflicted orchards ...