Impatiens necrotic spot virus (INSV) and Tomato spotted wilt virus (TSWV) are the most serious viral pathogens in the production of ornamental plants in Europe and North America (1). During a survey for the presence of tospoviruses in July 2012, potted begonia hybrids (Begonia × tuberhybrida Voss)
Impatiens necrotic spot virus (INSV) is a member of the genus Tospovirus, and one of the prevalent viruses infecting ornamental plants, including begonia. Since the late 1980s, it has caused dramatic and unusual diseases on many flower crops, leading to considerable economic losses to the greenhouse
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