Michigan State University Extension
Ornamental Plants plus Version 2.0 - 00001535
01/01/98

VIOLA INSECT PROBLEMS

Aphids suck plant juices and can be controlled with dust    
or sprays.                                                  

Cutworms eat the foliage.                                   

Violet gall midge larva attacks the leaves at the           
growing point causing a gall to form.  The distorted        
leaves are subject to wet rot.  Infected plants are         
dwarfed and produce few blooms.  Remove and destroy         
infested leaves.                                            

Greenhouse leaf tier webs the flower buds and leaves        
together.                                                   

Violet sawfly larvae skeletonize the leaves and then eat    
them.  The larva is bluish black and one-half inch long.    

Slugs will feed on the foliage but can be controlled        
with baits.                                                 

Mites cause loss of green color.                            

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