Assessment of a forecasting model and a risk index for improved management of Tomato spotted wilt virus on peanut (Arachis hypogaea L.) and tobacco (Nicotiana tabacum L.) in Georgia
Williams, Blake Wallace
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Plant viruses cause serious production constraints and financial losses annually. Most effective management techniques require consideration of both vector populations and virus spread. Through an integrated approach, we investigated the contribution of a multi-model method to manage spotted wilt disease in cultivated peanut. Spotted wilt, caused by thrips-vectored Tomato spotted wilt virus (TSWV), is an important viral disease affecting peanut production in the southeast United States. Current management is targeted at minimizing spotted wilt severity and includes an assortment of production practices. Through the introduction of a spotted wilt forecasting model which accounts for these factors, disease pressure can be predicted. These results provide a framework in which models can be developed to increase spotted wilt management in the southeast. Producers will be able to account for both spotted wilt risk and disease pressure, which will subsequently allow them to determine the best production practices to limit spotted wilt incidence.