EDIVÂNIO RODRIGUES DE ARAÚJO, Epagri; RENATA SOUSA RESENDE, Epagri; MIRTES FREITAS LIMA, CNPH.2026-07-07http://hdl.handle.net/123456789/452674During 2017/18, 2018/19 and 2019/20 crop seasons, sudden leaf blight symptoms were observed in bulb onion crops in open fields in Santa Catarina State. Eventually, leaves exhibited whitish diamond-shaped spots, characteristic of IYSV-like symptoms. In turn, yellow or light green diamond-shaped spots, which may or may not have a lighter center, were observed on scape from seed onion crop.openAccessIris yellow spot orthotospovirusCebolaDoença de PlantaVírusAllium CepaThrips tabaciOnionsArtigo de periódico