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Surveying: Leafhopper populations

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Authors

F. L. Jensen, Tulare County
E. M. Stafford, University of California
H. Kido, U.C. Davis
D. Flaherty, Division of Biological Control

Publication Information

California Agriculture 19(4):7-7.

Published April 01, 1965

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Abstract

Rapid and accurate surveying for grape leafhopper population levels is essential to a decision for necessity of insecticide treatment within an integrated pest control program. These Tulare County studies indicate that counting the nymphs on only two leaves per acre gives as accurate an estimate of the population as did counting the nymphs on fifty leaves. It was also found that the leaves could be selected from vines along the avenues, rather than from vines scattered throughout the vineyard.

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Surveying: Leafhopper populations

F. L. Jensen, E. M. Stafford, H. Kido, D. Flaherty
Webmaster Email: wsuckow@ucanr.edu

Surveying: Leafhopper populations

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

F. L. Jensen, Tulare County
E. M. Stafford, University of California
H. Kido, U.C. Davis
D. Flaherty, Division of Biological Control

Publication Information

California Agriculture 19(4):7-7.

Published April 01, 1965

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

Rapid and accurate surveying for grape leafhopper population levels is essential to a decision for necessity of insecticide treatment within an integrated pest control program. These Tulare County studies indicate that counting the nymphs on only two leaves per acre gives as accurate an estimate of the population as did counting the nymphs on fifty leaves. It was also found that the leaves could be selected from vines along the avenues, rather than from vines scattered throughout the vineyard.

Full text

Full text is available in PDF.

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