How to Manage Pests
UC Pest Management Guidelines
Pathogen: Beet curly top virus (BCTV)
(Reviewed 12/09, updated 12/09)
In this Guideline:
SYMPTOMS AND SIGNS
Symptoms of curly top include stunting, stiffness, short internodes, and leaves that are darker green than normal. Runner tips tend to turn up. Plants infected in seedling stage die. Leaves may roll upward and have a crinkled appearance. Older plants may turn yellow and die.
COMMENTS ON THE DISEASE
Curly top is rare in cucurbits. The virus is transmitted by the beet leafhopper, Circulifer tenellus; the leafhopper retains the virus and is capable of transmitting it for its entire life. Curly top virus has a wide host range including many weeds.
No control is practiced.
UC IPM Pest Management Guidelines:
R. M. Davis, Plant Pathology, UC Davis
Acknowledgment for contributions to Diseases:W. D. Gubler, Plant Pathology, UC Davis