Original ResearchPublished 22 September 2026Correlation analysis of field spore dynamics, disease severity, and major environmental factors for tobacco brown spotQi Feng · Zefan Huo · Xingjiang Chen · Xuebai Qiu · Jingrong Hu · Liuti Cai · Ning Lu · Caihua Shi · Mengxue Xu · Hancheng WangFrontiers in Agronomydoi 10.3389/fagro.2026.1926126