Michigan State University Extension
Ornamental Plants plus Version 3.0 - 00001193
11/12/99
PRUNUS INSECT PROBLEMS
Aphids cause distortion of new growth, deposits of
honeydew, and sooty mold.
Borers attack flowering cherries. Keep trees healthy
with regular fertilizer applications.
Scales of several types infest Prunus. Identify the
scale for proper timing of crawlers.
Spider mites cause yellowing or stippling but are very
difficult to see.
Tent caterpillars (Vis. 1) make large webbed nests in trees
then eat the foliage. One defoliation may not be serious
and small nests can be pruned out and destroyed. Use
pesticides when webs are first seen and insects are still
small.
Related information.
Pesticide Recommendations
Aphids on Ornamentals
Eastern Tent Caterpillar
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mentioned. This information becomes public property upon
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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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