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AN ANALYSIS OF COTTON PRODUCTION IN CALIFORNIA: LYGUS HESPERUS (HETEROPTERA: MIRIDAE) INJURY—AN EVALUATION1

Published online by Cambridge University Press:  31 May 2012

A. P. Gutierrez ,
T. F. Leigh ,
Y. Wang  and
R. D. Cave
A. P. Gutierrez
Affiliation:
Department of Entomology, University of California, Davis
T. F. Leigh
Affiliation:
Department of Entomology, University of California, Davis
Y. Wang
Affiliation:
Division of Biological Control, University of California, Berkeley
R. D. Cave
Affiliation:
Division of Biological Control, University of California, Berkeley
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Abstract

A method is described for partitioning normal plant fruit shedding losses from those caused by the pest Lygus hesperus Knight. The relationship between age of bug and its damaged rate per day degree was determined, and used to assess the impact of various lygus population levels on crop development and yield. A simulation model for lygus phenology and population dynamics is reported.

Type
Articles
Information
The Canadian Entomologist , Volume 109 , Issue 10 , October 1977 , pp. 1375 - 1386
Copyright
Copyright © Entomological Society of Canada 1977

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References

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