Banana prices are predicted to increase in the future due to the effects of global warming on the industry's ability to fight plant diseases such as Fusarium Wilt TR4, says Pascal Liu, a senior economist at the Food and Agriculture Organization of the United Nations. The fungal infection TR4, whose spores are 'extremely resistant', is a significant threat to the industry and is expected to spread more rapidly due to abnormal weather conditions. Liu anticipates that unless there is a substantial rise in supply, banana prices will continue to be relatively high.