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more general categories information about this item 13. Food and Nutrition 13. Food and Nutrition Food and Nutrition (85) Agriculture (5) description: IR-4 Project is the major resource for supplying pest management tools for specialty crop growers by developing research data to support new EPA tolerances and labeled product uses. AFDSI created a IR-4 Ontology to integrate IR-4 tolerances and label data. complete name: IR-4 Ontology