Michigan State University Extension
Ornamental Plants plus Version 3.0 - 00000312
11/12/99
CELASTRUS INSECT PROBLEMS
Euonymus scale causes leaf yellowing followed by plant
death. The insects are not readily seen and so can build
up to large numbers before they are noticed. The
preferred method of control involves regular inspection
for early detection of the infestation then spraying with
dormant oil.
Oystershell and San Jose scale may also infest bittersweet.
The preferred method of control involves regular inspection
for early detection of the infestation then spraying with
dormant oil.
Aphids suck plant juices, and heavy infestations distort
new growth and cover the leaves with sticky honeydew. The
insects can be dislodged with a high pressure water spray
from the garden hose.
Related information.
Pesticide Recommendations
Euonymus Scale
Oystershell Scale
Aphids on Ornamentals
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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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heatley@msue.msu.edu . Please read our
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