Winland Foods, a US-based producer of private label and branded food items, has merged with La Doria, an Italian producer of tomato products, preserved vegetables and juices, to form Windoria, a new food group valued at $4 billion. The merged group will supply leading retailers, distributors and foodservice operators while managing more than 40 proprietary consumer labels. In addition, it will employ 5,000 staff and operate 28 plants worldwide, including 11 …