Thomas Turini conducted experiments over three years to help producers control tomato spotted wilt on processing tomatoes. Tomato spotted wilt can cause substantial yield loss. It is transmitted by an insect that is difficult to control and it is likely that one tactic alone will not effectively control this disease. Information regarding relative susceptibility of varieties to this disease and in-field management of the insect that transmits this virus (thrips) has been generated and provided to clientele. The influence of control programs on the incidence of the virus in the field as well as analysis of yield and quality in processing tomatoes over two years of field trials on this subject have also been shared. This information has been used by consultants to develop and evaluate their management programs resulting in fewer applications of insecticides that are ineffective against the thrips target. In addition, they now can consider relative susceptibility of processing tomato varieties when making thrips management program decisions.
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The University of California Division of Agriculture and Natural Resources (ANR) is a statewide network of campus based Agricultural Experiment Station researchers and Cooperative Extension specialists located on the Berkeley, Davis and Riverside campuses working collaboratively with county-based Cooperative Extension advisors located in 50 county offices throughout the state.