California Agriculture Online
California Agriculture Home  >   Volume 10   >   Number 3  >   Viewing Summary

research article

Walnut aphid studies in 1955: Experimental systemic aphicide OMPA has outstanding promise but more studies needed before release for commercial use

authors

A. E. Michelbacher, University of California
Earl Oatman, University of California

publication information

California Agriculture 10(3):9-14. DOI: 10.3733/ca.v010n03p9. March 1956.

Summary

Summary Not Available – First paragraph follows:

The 1955 infestations of the walnut aphid were exceedingly severe in certain areas, such as Linden. By early May, the average number of aphids found—on the next to the terminal leaflets—in some orchards exceeded 50.

author affiliations

A. E. Michelbacher is Associate Professor of Entomology, University of California, Berkeley. Earl Oatman is Research Assistant, University of California, Berkeley.

author notes

The above progress report is based on Research Project No. 1314.