پزشکان گیاهان

Tobacco ringspot nepovirus

The virus is transmitted by a broad range of vectors including a nematode (Xiphinema americanum), thrips (Thrips tabaci), spider mites (Tetranychus spp.), grasshoppers (Melanoplus app.), and possibly the tobacco flea beetle, (Epitrix hirtipennis). The virus is also seed-transmitted with up to 10% efficiency. Tobacco ringspot nepovirus (TRSV) has a wide host range that includes more than 17 dicot and monocot families. On soybean, TRSV causes bud blight of soybean, where the tips of branches turn a dark black and are curled down. This can be a severe disease and is associated with substantial losses of yield.