Michigan State University Extension
Ornamental Plants plus Version 3.0 - 00000208
11/12/99
BERBERIS INSECT PROBLEMS
Aphids suck plant juices, and heavy infestations coat the
leaves with sticky honeydew. Large aphid populations
cause the new growth to be distorted. Aphids can be
dislodged by a high pressure water spray from the garden
hose.
Scale insects blend in well with the stems and may not be
readily noticed. Infestations can be controlled with
dormant oil applied in the spring before growth begins. A
less desirable alternative is applications of properly
labeled pesticides when crawlers are active. The
preferred method of control involves regular inspection
for early detection of the infestation then spraying with
dormant oil.
Related information.
Pesticide Recommendations
Aphids on Ornamentals
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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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