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How to Manage Pests

UC Pest Management Guidelines


Potato

Cucumber Mosaic

Pathogen: Cucumber mosaic virus (CMV)

(Reviewed 8/07, updated 8/07)

In this Guideline:


SYMPTOMS AND SIGNS

Cucumber mosaic appears as a chlorosis and blistering mottle of leaves. Margins of leaves are wavy. Intense yellow flecks may develop over the leaf surface. Plants are stunted.

COMMENTS ON THE DISEASE

Cucumber mosaic virus infects many crops and weeds. The virus is transmitted by many species of aphids. The disease is only an economical problem in potato when potatoes are planted next to or in the immediate vicinity of another crop heavily infested with the virus and aphids. Cucumber mosaic is an occasional problem in Kern County in potatoes planted near blackeye bean fields that harbor the virus.

MANAGEMENT

Do not plant potatoes near crops heavily infested with aphids and infected with cucumber mosaic virus.

PUBLICATION

[UC Peer Reviewed]

UC IPM Pest Management Guidelines: Potato
UC ANR Publication 3463
Diseases
R. M. Davis, Plant Pathology, UC Davis
J. Nuñez, UC Cooperative Extension, Kern Co.
B. J. Aegerter, UC Cooperative Extension, San Joaquin Co.
Acknowledgment for contributions to the disease section:
C. Smart, Plant Pathology, UC Davis

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