Control of the brown apricot scale and the Italian pear scale on deciduous fruit trees
By: by E.O. Essig
Series: Circular / University of California, College of Agriculture, Agricultural Experiment Station -- no. 224; Circular (California Agricultural Experiment Station) -- 224.
Publisher: University of California, College of Agriculture, Agricultural Experiment Station
Published: 1920
Place of publication: Berkeley, Calif
Language: eng
Number of pages: 11
Subjects: Control; Fruit lecanium; Pear-scale