Citrus tree freeze damage: Possible effect of the January 1949 cold spell on the 1950 crop and recommended treatment of injured trees
J. C. Johnston, Citrus Experiment Station
California Agriculture 3(4):5-6. DOI: 10.3733/ca.v003n04p5.
Not available – first paragraph follows:
Damage to citrus trees by the January freeze now appears to be slight—when the State is considered as a whole.
J. C. Johnston is Extension Specialist in Citricutture, Citrus Experiment Station, Riverside.
Recommendations concerning individual problems in various districts may be obtained from the Office of the County Farm Advisor or the University of California College of Agriculture, Agricultural Extension Service.