Michigan State University Extension
Ornamental Plants plus Version 3.0 - 00000257
11/12/99
CALTHA DISEASE PROBLEMS
Leaf gall caused by Synchytrium aureum disfigures the
leaves. Infected leaves are picked off and burned.
Leaf spots can be caused by various fungi. These are
usually not serious and no chemical control is suggested.
Powdery mildew forms a white coating on the leaves.
Related information.
Pesticide Recommendations
Powdery Mildew
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.