TY  - BOOK
AU  - Parrott, P. J.
AU  - Houser, J. S.
TI  - Experiments with sulphur sprays for the fall treatment of the San Jose scale
U1  - PA-C 632.9 T4 
CY  - Wooster, Ohio
PB  -  Agricultural Experiment Station
KW  - Control de plagas  Aspidiotus
N1  - Encuadernado con: The hessian fly in Ohio/C. E. Thorne
ER  -