Spencer, Herbert <br/><br/>
New equipment for obtaining host materia for the mass production of Trichogramma minutum, an egg parasite of various insect pests  / 
by Herbert Spencer and Arthur M. Phillips 
 - Washington  :   Department of Agriculture 
 - 18 p. 
 - EUA. Dep. of Agri. Circular; 376 .
<br/><br/><label>LCCN: </label>203875 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trichograma minutum  Insectos -- Alimentación