Standard insecticides and fungicides versus secret preparations
By: by Geo. P. Gray
Series: Circular / University of California, College of Agriculture, Agricultural Experiment Station -- no. 141; Circular (California Agricultural Experiment Station) -- 141.
Publisher: University of California, College of Agriculture, Agricultural Experiment Station
Published: 1915
Place of publication: Berkeley, Calif
Language: eng
Subjects: Fungicides; Insecticides