Has subject area For 2008 2 Digit Code BIOLOGICAL SCIENCES ENVIRONMENTAL SCIENCES For 2008 6 Digit Code Crop and Pasture Protection (Pests, Diseases and Weeds) Seo 2008 6 Digit Code Climate Change Mitigation Strategies Control of Plant Pests, Diseases and Exotic Species in Farmland, Arable Cropland and Permanent Cropland Environments