Michigan State University Extension
Ornamental Plants plus Version 2.0 - 00000312
01/01/98

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.                                       

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