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research article

Rapid spread of alfalfa pest: Spotted alfalfa aphid infests about 75% of state's alfalfa acreage within two years after its discovery in California

authors

Ray F. Smith, University of California
John E. Swift, University of California
Jack Dibble, University of California

publication information

California Agriculture 10(2):5-15. DOI: 10.3733/ca.v010n02p5. February 1956.

author affiliations

Ray F. Smith is Associate Professor of Entomology, University of California, Berkeley. John E. Swift is Extension Entomologist, University of California, Berkeley. Jack Dibble is Extension Field Technologist, University of California, Berkeley.

abstract

Abstract Not Available – First paragraph follows:

The worst pest of alfalfa ever to reach California has spread within two years to 33 alfalfa-producing counties.

author notes

The spread of the aphid reported above has been followed by co-operative surveys conducted by the University of California, the State Department of Agriculture, and the County Farm Advisors and Agricultural Commissioners.


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