[Continental expansion of programs for insect control and trends of the technics employed].
D000818:Animals; D003634:DDT; D001556:Hexachlorocyclohexane / Q000494:pharmacology*; D007300:Insect Control; D007313:Insecta
D001556:Hexachlorocyclohexane; D003634:DDT
BENZENE HEXACHLORIDE/effects; DDT; INSECTS
EXPANSION continental de los programas de control de insectos y tendencia de las tecnicas empleadas.