Pesticides - an overview with particular reference to Sri Lanka [insecticides, fungicides, economics, legislation, pollution, poisoning]

agentes nocivos agricultural chemicals animal animal nuisible animales animales nocivos animals antimicrobials antimicrobien asia asie bactericidas biological control drugs economia economics economie envenenamiento facteur nuisible fongicide food hygiene fungicidas fungicides higiene higiene de los alimentos hygiene injurious factors insecte nuisible insecticidas insecticide insecticides intoxication legislation lutte biologique medicamentos noxious animals organisme nuisible pest control methods pest insects pesticide pesticides pests plagas plaguicidas poisoning pollution pollution de l'eau pollution du sol produit agrochimique soil pollution toxicologia toxicologie toxicology water pollution