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California Agriculture
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Control of the frosted scale: Tests in southern California indicate parathion sprays effective treatment against pest on walnut

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Authors

J. C. Ortega, University of California

Publication Information

California Agriculture 8(1):10-10.

Published January 01, 1954

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Abstract

The frosted scale–Leeanium pruninosum Coq.–is a large, convex black scale about 5/16” long and is covered with a frostlike wax. The eggs are oval and pearly white when first laid, but as they develop under the female scale they turn darker. When ready to hatch they are pale brown in color. The hatch starts early in May and continues into July or–in some areas–into August.

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Author notes

The above progress report is based on Research Project No. 1419.

Control of the frosted scale: Tests in southern California indicate parathion sprays effective treatment against pest on walnut

J. C. Ortega
Webmaster Email: wsuckow@ucanr.edu

Control of the frosted scale: Tests in southern California indicate parathion sprays effective treatment against pest on walnut

Share using any of the popular social networks Share by sending an email Print article
Share using any of the popular social networks Share by sending an email Print article

Authors

J. C. Ortega, University of California

Publication Information

California Agriculture 8(1):10-10.

Published January 01, 1954

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

The frosted scale–Leeanium pruninosum Coq.–is a large, convex black scale about 5/16” long and is covered with a frostlike wax. The eggs are oval and pearly white when first laid, but as they develop under the female scale they turn darker. When ready to hatch they are pale brown in color. The hatch starts early in May and continues into July or–in some areas–into August.

Full text

Full text is available in PDF.

Author notes

The above progress report is based on Research Project No. 1419.


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