Pistachio prices have surged to multi-year highs as the war in Iran tightens supply. Now, South Africa’s Karoo region is stepping into the spotlight, as farmers bet they can carve out a place in a market long dominated by a handful of producers. Bloomberg's Jennifer Zabasajja reports. -------- More on Bloomberg Television and Markets Like this video? Subscribe and turn on notifications so you don't miss any videos from Bloomberg Markets & Finance: https://tinyurl.com/ysu5b8a9 Visit http://www.