Filbertworm control: Experimental insecticides show promise in tests on northern California walnuts
A. H. Retan, University of California.
G. R. Post, University of California.
A. E. Michelbacher, University of California, Berkeley.
California Agriculture 13(7):13-14. DOI: 10.3733/ca.v013n07p13.
Summary Not Available – First paragraph follows:
In the second year of tests, Guthion and Sevin–not yet released for use on walnuts–again showed encouraging control of the filbertworm on Payne and Franquette walnuts.
A. H. Retan is Farm Advisor, Butte County, University of California. G. R. Post is Farm Advisor, Sutter County, University of California. A. E. Michelbacher is Professor of Entomology, University of California, Berkeley.