2026-06-27http://hdl.handle.net/123456789/124354Grain protection has been in practice for centuries in the tropics. Earlier protection included use of materials such as repellent respectively.application/pdfOpen AccesschemicalgrainstorageharvestpestsChemical intervention in all stages and at all scales of tropical storage practice: paper presented at the First International Working Conference on StoredProduct Entomology, 711 October, 1974, Georgia, U.S.AConference Paper