Avoid soils known to be infested with Pellicularia filamentosa or Pythium mamillatum. No chemical control is listed. Cucumber mosaic virus causes leaf mottling and stunted plants that fail to flower. Destroy infected plants and control the insects which carry the disease. No chemical control is listed.
Powdery mildew causes a white coating on the leaves.
Use applications of benomyl or sulfur. 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.