How to Manage Pests

Pests in Gardens and Landscapes

Seasonal development and life cycle—Spotted wilt virus

Spotted wilt virus is transmitted by various species of thrips. Once thrips nymphs acquire the virus by feeding on infected plants, they will retain the ability to transmit it for the remainder of their lives. Spotted wilt virus can be passed from infected females through the eggs to her offspring. In addition to infecting its insect vectors, spotted wilt has an extremely wide host range among plants, including many weeds as well as crop hosts such as peppers and tomatoes. It is one of the few plant viruses whose host range includes broadleaf and grassy plants (including onions). Although the virus is extremely widespread and is very damaging in greenhouses on ornamentals, it generally causes few losses in garden crops.

Tomatoes are affected by spotted wilt virus
Tomatoes are affected by spotted wilt virus

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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