Hilgardia
Hilgardia
Hilgardia
University of California
Hilgardia

Late plantings reduce yellows virus infection, improve beet yields and sugar production at Davis

Authors

F. J. Hills
W. H. Lange
R. S. Loomis
J. L. Reed
D. H. Hall

Authors 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 Assistant Agronomist, University of California, Davis; J. L. Reed is Research Assistant, University of California, Davis; D. H. Hall is Extension Plant Pathologist, University of California, Davis.

Publication Information

Hilgardia 17(3):14-15. DOI:10.3733/ca.v017n03p14. March 1963.

PDF of full article, Cite this article

Abstract

Weekly spraying for aphid control reduced natural infection by yellows viruses from 50% to 14% in sugar beets planted April 10 and increased sugar yield 30% by mid-October. While spraying this often is not an economical means of control for virus yellows, the experiment showed that a considerable reduction in yields can be caused by naturally occurring strains of yellows viruses. However, sugar beets planted May 7 remained essentially virus free and by October 22 yielded 10% more sugar than beets planted in April, half of which became diseased.

Hills F, Lange W, Loomis R, Reed J, Hall D. 1963. Late plantings reduce yellows virus infection, improve beet yields and sugar production at Davis. Hilgardia 17(3):14-15. DOI:10.3733/ca.v017n03p14
Webmaster Email: wsuckow@ucanr.edu