Tomato spotted wilt virus (TSWV) in peanuts and home garden tomatoes

Incidence of TSWV is increasing in the peanut crop. We have the advantage of having a lot of peanut thrips trials evaluating varieties and many insecticide control options where we are also able to rate TSWV severity. Hopefully, we will find the most effective alternatives for minimizing both thrips and the disease. We are also getting reports from home gardeners that tomato plants are showing disease symptoms. When disease symptoms begin to express in a plant, there is essentially nothing that can be done to decrease the severity. Some feel that removing infected tomato plants will prevent, or at least minimize the risk of transmission to other plants. Maybe, but the transmission has to occur from adult thrips that acquired the virus by feeding on infected plants while in the larval stage. An insecticide protection regime designed to control thrips can help a lot in reducing the spread of the virus from plant to plant.

Leave a Reply