Fall webworm larvae web over branches then feed on leaves inside the nest. Nests can be pruned out of small trees. Use sprays of Bacillus thuringiensis.
Scales of various types attack walnuts. Identify the insect and apply pesticides recommended for that particular scale. Most scales can be controlled with dormant oil applied in spring. Use properly timed sprays of Sevin to control crawlers.
The leaves may be eaten by anyone of several caterpillars. These can be controlled with sprays once identified.
Mites cause speckling and yellowing of the leaves.
|Visual title - Visual size||Visual title - Visual size|
|Walnut acrobasis damage - 21K||Walnut acrobasis shoot damage - 16K|
|Walnut acrobasis larva tunneling in shoot - 22K|