Southern California walnut pests: Control program based on latest insecticides tests outlined for orchards in southern part of state
J. C. Ortega, University of California College of Agriculture Citrus Experiment Station
California Agriculture 4(8):4-10. DOI: 10.3733/ca.v004n08p4.
J. C. Ortega is Principal Laboratory Technician in the University of California College of Agriculture Citrus Experiment Station, Riverside.
Not available – first paragraph follows:
Control studies of walnut pests in southern California groves included practically all of the promising new insecticides.