Walnut aphid study: Shows systox promising material for conditions in northern California
A. E. Michelbacher, University of California
O. G. Bacon, University of Californian
C. S. Davis, University of California
California Agriculture 7(4):10-10. DOI: 10.3733/ca.v007n04p10.
Not available – first paragraph follows:
A single application of systox was sufficient to control the walnut aphid for the entire season in an experimental orchard at Linden.
A. E. Michelbacher is Associate Professor of Entomology, University of California, Berkeley; O. G. Bacon is Assistant Professor of Entomology, University of Californian, Berkeley; C. S. Dams is Research Assistant in Entomology, University of California, Berkeley;