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research article

Late-planted sugar beets damaged by yellows viruses: Production improved by aphid control

authors

F. J. Hills, University of California, Davis.
W. H. Lange, University of California, Davis.
R. S. Loomis, University of California, Davis.
J. L. Reed, University of California, Davis.
D. H. Hall, University of California, Davis.

publication information

California Agriculture 18(5):10-11. DOI: 10.3733/ca.v018n05p10. May 1964.

author affiliations

F. J. Hills is Extension Agronomist, University of California, Davis. W. H. Lange is Professor of Entomology, University of California, Davis. R. S. Loomis is Associate Agronomist, University of California, Davis. J. L. Reed is Assistant Specialist in Entomology, University of California, Davis. D. H. Hall is Extension Plant Pathologist, University of California, Davis.

abstract

In contrast to results of previous years, May-planted beets became 44% infected with yellows and did not yield as well as March and April plantings in 1963 tests at Davis. Three sprays, for aphid control, applied to May-planted beets, increased production 9.5 tons of roots per acre, 5.3 more tons of roots per acre than beets planted in March.


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