Cost and effectiveness of different insect and disease control practices in New York apple orchards  / 
H. Von Oppenfeld [et.al.] 
 - Itaca, N. Y.  :   Agricultural Experiment Station 
 - 75 p 
 - New York Agri. Exp. Sta. Bull; 886 .
<br/><br/><label>LCCN: </label>202712 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aspersión -- Efecto en árboles frutales  Insecticidas