Michigan State University Extension
Ornamental Plants plus Version 3.0 - 00001379
11/12/99
SORBUS INSECT PROBLEMS
Aphids cause distorted growth and deposits of honeydew on
leaves.
Mountain ash sawfly larvae (Vis. 1) are light green with
black dots and tend to feed in groups. The insects curl the
back of their bodies around the stems as they feed.
Scales of various types can usually be controlled with
sprays of dormant oil applied in the spring.
Related information.
Pesticide Recommendations
Aphids on Ornamentals
Mountain Ash Sawfly
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This file was generated from data base ZZ on 01/19/00.
Data base ZZ was last revised on 11/12/99.
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