Surface tension, surface activity, and wetting abilyty as factors in the performance of contact insecticides :   studies of contact Insecticides I  / 
W. C. O'kane [et.al.] 
 - Durham, N. H.  :   Agricultural Experiment Station 
 - 42 p. 
 - New Hampshire Agri. Exp. Sta. Tech. Bull; 39 .
<br/><br/><label>LCCN: </label>202750 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insectos -- Efecto de la humedad  Insecticidas -- Pruebas  Insecticidas de contacto