University of California

Streptomycin vs. copper for controlling fireblight of pear in California, 1970


J. Blair Bailey
Gordon W. Morehead

Authors Affiliations

J. Blair Bailey is Extension Entomologist, Statewide Pesticide Safety Specialist Berkeley, and Associate in the Department of Environmental Toxicology, University of California, Davis; Gordon W. Morehead is Farm Advisor, Sacramento County. Jack Clifton, Ranch Manager, Natomas Company Ranch, Sacramento, cooperated in this study. River Farm Supply, Courtland, supplied the Kocide (cupric hydroxide) produced by Occidental Chemical Company, Lathrop. The Econ-O-Mist concentrate spray rig was calibrated and loaned for these tests by the Hart Carter Pacific Corporation, Stockton.

Publication Information

Hilgardia 25(1):6-7. DOI:10.3733/ca.v025n01p6. January 1971.

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FIELD EXPERIMENTS to Compare Streptomycin with copper for control of fireblight of pears were conducted on the Natomas Company Ranch, east of Sacramento, under conditions which were compatible with a commercial pear growing operation. This pear ranch was selected for use because of the extensive fireblight present there during 1969. The trees in this 12-year-old Bartlett pear orchard were planted 20 ft by 20 ft (109 trees per acre).

Bailey J, Morehead G. 1971. Streptomycin vs. copper for controlling fireblight of pear in California, 1970. Hilgardia 25(1):6-7. DOI:10.3733/ca.v025n01p6
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