Spraying walnut trees for blight and aphis control
By: by Ralph E. Smith, assisted by T. Francis Hunt and W.H. Nixon
Contributors: Hunt, T. Francis; Nixon, W. H.
Series: Circular / University of California, College of Agriculture, Agricultural Experiment Station -- no. 107; Circular (California Agricultural Experiment Station) -- 107.
Publisher: University of California, College of Agriculture, Agricultural Experiment Station
Published: 1913
Place of publication: Berkeley, Calif
Language: eng
Subjects: Control; Walnut-blight; Walnut; Diseases and pests