Parrott, P. J. <br/><br/>
Experiments with sulphur sprays for the fall treatment of the San Jose scale  / 
P. J. Parrot, J. S. Houser 
 - Wooster, Ohio  :   Agricultural Experiment Station 
 - 13 p. 
 - Ohio Agr. Exp. Sta. Bull; 144 .
<br/><br/> Encuadernado con: The hessian fly in Ohio/C. E. Thorne 
<br/><br/><label>LCCN: </label>203803 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Control de plagas  Aspidiotus
<br/><br/><label>Dewey Class. No.: </label>PA-C 632.9 T4