OK
In progress indicator

Beech bark scale


In progress indicator

Comment on a listing

Comment on a listing

Comment on a listing

Cancel and close this form

Symptoms

Infested trees, with or without cankers, may appear to be covered with snow. Varying sizes of white fluffy "wool" covering tiny yellowish insects on the stem are indicative of active insect attack during, or in advance of, canker formation.

The pest renders the tree to infection by fungi which causes a serious condition called beech bark disease. This in turn causes extensive cankering and deformation of the stem, rendering the trees unsuitable for any use other than as firewood.

Spot them

Mature scale insects are only about 1mm long. More distinctive are the colonies containing females, eggs and nymphs which form white, waxy, powdery coating. The scale insect overwinters (in an immature stage) on the bark covered by the white, wool-like wax.

To view care instructions for this problem please login or register.

Discuss Beech bark scale with other Shoot members.

Login or register to add a comment or question about this plant problem.