Sequential Sampling for Use in Control of the Cabbage Looper on Cauliflower1

Author: HARCOURT, D. G.

Source: Journal of Economic Entomology, Volume 59, Number 5, October 1966 , pp. 1190-1192(3)

Publisher: Entomological Society of America

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Sequential sampling. in which decisions depend upon the accumulated results of a series of observations, leads to considerable saving of time and effort. A sequential plan, based on the negative binomial distribution and providing for 2 infestation classes, was drawn up for use in control of the cabbage looper, Trichoplusia ni (Hübner) , on cauliflower. An appraisal of the plan under field conditions showed that it reduced the sampling time by two-thirds while rating the infestation correctly in 82 of 84 cases. With the 2 discrepancies, population means lay between the limits set for the infestation classes.

Document Type: Research Article

Publication date: October 1, 1966

More about this publication?
  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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