2026/01/08 by K. L. Bowen, A. K. Hagan, Amanda Strayer-Scherer +1 · 1 voice
Agricultural and Biological Sciences · Nursing · #Peanut Plant Research Studies #Plant Disease Management Techniques #Nuts composition and effects
paper · pdf · doi:10.1094/phytofr-09-25-0090-r
openalex publication_date 2026/01/08 · openalex created_date 2026/01/09 · openalex updated_date 2026/06/11
One problematic disease of peanut in southeastern United States is tomato spotted wilt, caused by tomato spotted wilt orthotospovirus (TSWV). Tomato spotted wilt became widespread in peanuts across the southeastern United States in the early 1990s, but cultivars resistant to TSWV were subsequently released and have greatly reduced losses due to this disease. However, in recent years, tomato spotted wilt incidence has become substantial, even in resistant cultivars such as Georgia-12Y. Cultivar trials, done annually in Alabama, provided data with which to evaluate tomato spotted wilt incidence over several years and consider if TSWV is overcoming resistance in Georgia-12Y. The multiyear trials also allowed for comparison of disease and yield responses of root-knot-resistant cultivars, Georgia-14N and TifNV-High O/L, to commercial standard cultivars, Georgia-06G and Georgia-09B. Although tomato spotted wilt incidence was greater in 2020, 2021, and 2022 than in earlier study years, the incidence of the disease in Georgia-12Y was lower than on other cultivars in each year. Pooled over years, pod yields of Georgia-06G and Georgia-12Y were similar and greater than yields of other cultivars. In 5 and 3 of 7 years, TifNV-High O/L and Georgia-14N, respectively, had yields that were similar to Georgia-06G. Yields were negatively correlated with disease incidence ( R = −0.56) over all cultivars and positively correlated with rain ( R = 0.75). No link was found between several weather variables and the intensity of tomato spotted wilt in this study. Although disease incidence was substantial in the 3 most recent years examined, the disease resistance exhibited by Georgia-12Y appears stable. [Formula: see text] Copyright © 2026 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license .