Codling moth on walnuts: Southern California studies of varying methods of DDT application
AuthorJ. C. Ortega
Author AffiliationsJ. C. Ortega is Principal Laboratory Technician, Division of Entomology, Experiment Sfation, Riverside.
Hilgardia 2(7):4-14. DOI:10.3733/ca.v002n07p4. July 1948.
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.
Also in this issue:Walnut situation and outlook: As of April, 1948
Wedgeleaf ceanothus, range brush: Increase studied and control method recommended
Washington navels: 2,4-D water sprays to reduce preharvest drop of oranges
Good range management: Practices are especially important to stockmen during years of deficient rainfall
Chemical weed control equipment: Pumps, power, tanks, booms, and nozzles must fit crop requirements for best results
New seedless table grapes: Perlette and Delight, two new early maturing varieties
Freestone peaches: Successfully dried when dehydrated according to recommended practice
Caterpillars on tomatoes: Recognition of the kind is the first requirement in control program
Sulfur house operation: Simple procedure requires good materials and exacting care
Salt water in wells: Intrusion into water wells limited to certain areas
Dry bark of lemons prevalent: In coastal areas on various rootstocks and found to extend inland
California blackeye 5: State's third most important dry bean being improved for wilt resistance
Red scale on citrus: Use of DDT for control studied
Etiology and transmission of endosepsis (internal rot) of the fruit of the fig