Hilgardia
Hilgardia
Hilgardia
University of California
Hilgardia

Chemicals on European red mite: Two different methods of evaluation of spray materials for spider mite control used in field tests during 1957 season

Author

Harold F. Madsen

Author Affiliations

Harold F. Madsen is Assistant Entomologist, University of California, Berkeley.

Publication Information

Hilgardia 12(2):8-15. DOI:10.3733/ca.v012n02p8. February 1958.

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Abstract

Variable conditions in the fruit growing areas of California make it difficult to project the results from evaluation tests in one area to another. As a consequence, field plots were established for the 1957 season in Bartlett pear orchards—in Sacramento, Solano, El Dorado, Lake, and Mendocino counties—for University personnel to evaluate spray materials under local conditions. As a correlative evaluation, spray chemicals used in codling moth and aphid control plots were checked for their effects on spider mites.

Madsen H. 1958. Chemicals on European red mite: Two different methods of evaluation of spray materials for spider mite control used in field tests during 1957 season. Hilgardia 12(2):8-15. DOI:10.3733/ca.v012n02p8
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