Smith, Floyd F The iris thrips and its control by hot water, with notes on other treatments / by Floyd F. Smith and L. G. Utter - Washington : Department of Agriculture - 12 p. - EUA. Dep. of Agri. Circular; 445 . LCCN: 202112 Subjects--Topical Terms: Tisanópteros Lirio -- Plagas Control de plagas