A fluffy white, waxy substance will often develop on the bark and branches of apple trees,ornamental malus trees, pyracantha and cotoneaster in summer. Ocassionally seen on pear trees. Woolly aphid can be seen around old prune sites/splits in older bark in Spring. Later feeding on young branches causes soft, knobbly swollen galls. These galls are prone to splitting in frosty conditions - which may become susceptible to fungal diseases ie pear, apple Canker.
Product Solution: Early signs in spring spray with Provado Ultimate Bug Killer - Ready to Use. Plant oil based winter tree washes can be applied to the tree during the winter to control overwintering pests.