Definitions for "INSV"
impatiens necrotic spot virus. Impatiens necrotic spot virus is a member of the tospovirus group and was first called TSWV-Impatiens. In 1991, researchers determined that this thrips-transmitted virus commonly found destroying impatiens, cyclamen and other greenhouse crops, was distinct from TSWV (not just a special strain) and named it INSV.