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Resistance to acaricides by European red mite studied in Bartlett pear field plots

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Authors

Harold F. Madsen, University of California, Berkeley.
Peter H. Westigard, University of California, Berkeley.

Publication Information

California Agriculture 14(2):7-8.

Published February 01, 1960

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Abstract

The incidence of resistance to certain acaricides by the European red mite—Panonychus ulmi (Koch)—has increased severely during the past few seasons. The acaricides were organic phosphate compounds and such specific acaricides as Ovex and other closely related compounds, Chlorobenzilate and Kelthane. All of the observations on European red mite resistance in California have been from the field. Laboratory studies have not been conducted due to the difficulty of rearing this mite species under artificial conditions.

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Resistance to acaricides by European red mite studied in Bartlett pear field plots

Harold F. Madsen, Peter H. Westigard
Webmaster Email: wsuckow@ucanr.edu

Resistance to acaricides by European red mite studied in Bartlett pear field plots

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

Harold F. Madsen, University of California, Berkeley.
Peter H. Westigard, University of California, Berkeley.

Publication Information

California Agriculture 14(2):7-8.

Published February 01, 1960

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

The incidence of resistance to certain acaricides by the European red mite—Panonychus ulmi (Koch)—has increased severely during the past few seasons. The acaricides were organic phosphate compounds and such specific acaricides as Ovex and other closely related compounds, Chlorobenzilate and Kelthane. All of the observations on European red mite resistance in California have been from the field. Laboratory studies have not been conducted due to the difficulty of rearing this mite species under artificial conditions.

Full text

Full text is available in PDF.

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