How to Manage Pests
UC Pest Management Guidelines
Squash Mosaic Virus
Pathogen: Squash mosaic virus
(Reviewed 11/05, updated 6/08)
In this Guideline:
SYMPTOMS AND SIGNS
Symptoms of squash mosaic include mosaic patterns and mottling of the leaf along with deformed fruit.
COMMENTS ON THE DISEASE
The virus is vectored by the spotted cucumber beetle (Diabrotica spp.) and other related beetles. The beetles can retain the virus up to 20 days after feeding on an infected plant. The virus is also seed-borne.
Use virus-free seed to eliminate primary inoculum.
UC IPM Pest Management Guidelines:
R. M. Davis, Plant Pathology, UC Davis
Acknowledgment for contributions to Diseases:W. D. Gubler, Plant Pathology, UC Davis