Europe’s spring has so far proven far colder than predicted, and the implications for the continent’s food supply are starting to become a real worry. Since mid-April the Balkan states have seen temperatures plunge from near-record highs to unseasonal lows, bringing snow and ice to much of the region. “It was very warm, we even had temperatures of up to 30 one day, and then all of a sudden it dropped to minus. The fruits and all of this are all destroyed, it’s over, if there are any apples left it will be good,” said Franjo Crnković, a fruit farmer in Croatia. And in Poland, many strawberry fa…