Cocoa thrives in a healthy ecosystem. Thanks to industry-supported Farmer Field Schools, farmers are learning how to manage crop pests and diseases through IPM (Integrated Pest Management) techniques, reducing their use of agricultural chemicals. Another program, established through a partnership between the World Cocoa Foundation, STCP, Conservation International, and the Danish Centre for Forest, Landscape and Planning, works with cocoa farmers to encourage planting of timber trees – which provide an extra source of income, limit soil erosion and discourage cutting down of established tropical trees.