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Varying efficiency in a group of people sampling cabbage plants for aphids (Hemiptera: Aphididae)

Published online by Cambridge University Press:  10 July 2009

R. Harrington
R. Harrington
Affiliation:
Department of Entomology, AFRC Institute of Arable Crops Research, Rothamsted Experimental Station, Harpenden, Herts., AL5 2JQ, UK
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Abstract

The efficiencies of people sampling cabbage plants in the field for total numbers of Myzus persicae (Sulzer) were found to differ. Significantly more aphids were counted on leaves taken to the laboratory than on leaves examined by inexperienced people in the field, but field counts by an experienced person did not differ significantly from the laboratory sample. The implications of differences between people and the possibility of correcting for them in surveys are discussed.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 77 , Issue 3 , September 1987 , pp. 497 - 501
Copyright
Copyright © Cambridge University Press 1987

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References

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