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research article

Crown mite damage on spinach: Investigations demonstrate value of early chemical treatment for control of relatively new mite affecting spinach leaves

authors

W. H. Lange, University of California
O. G. Bacon, University of California

publication information

California Agriculture 12(2):9-16. DOI: 10.3733/ca.v012n02p9. February 1958.

abstract

Abstract Not Available – First paragraph follows:

Damage to spinach by the crown mite—Tyrophagus dimidiatus (Hermann) — was first observed to be of economic importance during the spring of 1949 in the Santa Clara Valley. Since that outbreak the mite has caused periodic damage to fall and spring planted spinach in most areas, but is more destructive in the coastal growing regions.

author affiliations

W. H. Lange is Professor of Entomology, University of California, Davis. O. G. Bacon is Associate Professor of Entomology, University of California, Davis.

author notes

The above progress report is based on Research Project No. 1275-G2.

The mites mentioned in the above report were identified by Dr. F. M. Summers, Entomology Department, University of California, Davis; Dr. H. H. J. Nesbitt, Carleton College, Ontario, Canada; and Dr. E. W. Baker, U. S. Department of Agriculture, Washington, D.C.


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