Oak pit scales: Control possible with emulsion-type foliage oil and toxaphene spray

Pritchard, A; Beer, R

Oak pit scales: Control possible with emulsion-type foliage oil and toxaphene spray

Authors

A. Earl Pritchard
Robert E. Beer

Authors Affiliations

A. Earl Pritchard is Assistant Professor Division of Entomology and Parasitology and Assistant Entomologist in the Experiment Station, Berkeley; Robert E. Beer was Research Assistant Division of Entomology and Parasitology in the Experiment Station, Berkeley, when these studies were conducted.

Publication Information

Hilgardia 4(4):9-14. DOI:10.3733/ca.v004n04p9. April 1950.

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Abstract

Oak pit scales are serious pests of oak trees in California. Terminal growth, branches, and smaller trees are often killed as a result of the feeding scales, and large trees may be weakened seriously. Experimental work indicates that oak pit scales may be controlled.

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