How to Manage Pests

Pests in Gardens and Landscapes

Seasonal development and life cycle—Strawberry virus diseases

A number of virus diseases may affect strawberry plants. Most are spread by insects, and all can be spread during vegetative propagation of planting material. These pathogens are microscopic organisms that multiply inside living host cells and spread throughout infected strawberry plants and their daughter plants.

Often the only effect of infection by a single virus is reduced plant vigor and fruit yield. A strawberry plant usually must be infected by more than one type of virus before visible symptoms develop, and yield reductions are more severe when more than one kind of virus is present. It usually takes more than 2 years in the field for the incidence of viruses to reach a level where multiple infections become significant.

Strawberry aphids transmit many viruses
Strawberry aphids transmit many viruses

Statewide IPM Program, Agriculture and Natural Resources, University of California
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Agriculture and Natural Resources, University of California

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