Codling moth on walnuts: Southern California studies of varying methods of DDT application
J. C. Ortega, Division of Entomology, Experiment Sfation, Riverside.
California Agriculture 2(7):4-14. DOI: 10.3733/ca.v002n07p4.
J. C. Ortega is Principal Laboratory Technician, Division of Entomology, Experiment Sfation, Riverside.
Not available – first paragraph follows:
Ordinary spray rig applications of DDT for control of codling moth on walnuts were given comparative tests against several other methods of application during the 1947 experimental program.