TY  - BOOK
AU  - Southwick, Lawrence
AU  - Shaw, J.K.
TI  - Spraying to control preharvest drop of apples
U1  - PA-C 634 N4 1933 
CY  - Amherst, Mass.
PB  -  Massachusetts Agricultural Experiment Station
KW  - Manzana
KW  -  fumigación
KW  -  Massachusett, USA
N1  - Encuadernado con: Orchard insects of the pacific northwest and their control / by E.J. Newcomer
ER  -