Michigan State University Extension
Ornamental Plants plus Version 3.0 - 00001535
11/12/99
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.
Related information.
Pesticide Recommendations
Spider Mites
This information is for educational purposes only. References
to commercial products or trade names does not imply
endorsement by MSU Extension or bias against those not
mentioned. This information becomes public property upon
publication and may be printed verbatim with credit to MSU
Extension. Reprinting cannot be used to endorse or advertise
a commercial product or company.
This file was generated from data base ZZ on 01/19/00.
Data base ZZ was last revised on 11/12/99.
For more information about this data base or its contents please contact
heatley@msue.msu.edu . Please read our
disclaimer for important
information about using our site.