<p>Climate change will in many ways affect agricultural production, including the incidence and severity of virus diseases in crop plants. Especially the colder regions of the world face temperature increases and consequently higher risks for virus problems. In a previous study from 2011, increased risks have been identified in Sweden for several insect-transmitted viruses: turnip yellows virus (TuYV) in oilseed rape, yellow dwarf viruses (YDVs) in cereals, wheat dwarf virus (WDV) in wheat, potato virus Y (PVY) in potato, and tomato yellow leaf curl virus (TYLCV) in greenhouse-grown tomato. During the period since then, as predicted, infections of TuYV and YDVs in winter crops have become more frequent because of warmer autumns and the ban on neonicotinoid insecticides. In contrast, the problems with WDV or PVY did not increase over this period, and TYLCV did not become established. With climate change and rising temperatures, it is evident that some virus infections have become more common, while there are many additional factors that restrict the spread of other viruses. For the future, it will be important with increased early monitoring of viruses to identify increases quickly, and with continued efforts for preventing virus spread in crops.</p>