Practical sanitation for apple orchards  / 
by M. D. Farrar [et.al.] 
 - Urbana, Illinois  :   Agricultural Experiment Station 
 - 23 p. 
 - Illinois Agri. Exp. Sta. Circular; 443 .
<br/><br/><label>LCCN: </label>202692 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Manzana -- Plagas  Manzana -- Enfermedades  Manzana -- Fumigación  Control de plagas