The aphids form dense colonies on small branches and the undersides of leaves.

[1] The aphids themselves are a light bluish color with bodies covered with long, white, waxy filaments giving them a woolly appearance.

[2] Deposits of sooty mold caused by the fungus Scorias spongiosa build up below the colonies, growing on the copious amounts of honeydew the insects exude.

[1] The aphids do not usually cause much damage to overall tree health, but dieback is occasionally seen on very heavily infested branches.

A wetting agent should be included to help penetrate the waxy body covering of the insect.