The Walnut Marketing Board is an organization that promotes the production and marketing of walnuts in a specific region. It works to enhance the quality and competitiveness of walnut products, ensuring that growers receive fair prices for their harvests. The board also conducts research and provides resources to help farmers improve their practices. Additionally, the Walnut Marketing Board engages in marketing campaigns to increase consumer awareness and demand for walnuts. By collaborating with various stakeholders, including growers and retailers, the board aims to expand the market for walnuts and support the overall industry growth.