Farmers & Diamond Foods likely work closely together
The origin of this company is a farmers Co-Operative. Not unlike a corporation, a cooperative is limited shareholder organization. The difference is that as a publicly traded corporation the owners don't have to be growers /farmers.
"Throughout the booming 1880s, walnut orchards sprang up throughout Southern California, which until 1920 produced 95 percent of the state’s commercial crop.
To provide a centralized location for processing their nuts, growers began forming dozens of local cooperative marketing associations such as Diamond Walnut Growers, Inc.
In July 2005, Diamond members voted in favor of a conversion of the agricultural cooperative into a stockholder-owned corporation, and Diamond Foods, Inc. was born. Diamond Foods stock trades on the NASDAQ National Market under the symbol “DMND.”"