Persistent Link:
http://hdl.handle.net/10150/204502
Title:
Field Evaluation of a Presence-Absence, Sequential Sampling Plan for Pink Bollworm Eggs
Author:
Hutchinson, Bill; Stroschein, Debra; Beasley, Bud; Martin, Jeanette; Henneberry, Tom
Issue Date:
Mar-1988
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Cotton: A College of Agriculture Report
Abstract:
During 1987, a sequential sampling plan for pink bollworm eggs was field-tested in eight 40-acre fields in the Palo Verde Valley, CA. Final analysis of the sequential procedure, including the time necessary to collect and check all bolls, required an average sampling time of 16 minutes/field, approximately a 70% savings over the fixed sample size of 160 bolls/field. Using the sequential plan, the number of bolls examined averaged 46.75/field. The sequential sampling plan error rate for making no-treat recommendations when a field actually required treatment (i.e., actual egg infestation 6%) averaged only 6.4% throughout the season. A final sequential sampling chart, based on the field validation data, is presented.
Keywords:
Agriculture -- Arizona; Cotton -- Arizona; Cotton -- Insect investigations
Series/Report no.:
370072; Series P-72

Full metadata record

DC FieldValue Language
dc.titleField Evaluation of a Presence-Absence, Sequential Sampling Plan for Pink Bollworm Eggsen_US
dc.contributor.authorHutchinson, Billen_US
dc.contributor.authorStroschein, Debraen_US
dc.contributor.authorBeasley, Buden_US
dc.contributor.authorMartin, Jeanetteen_US
dc.contributor.authorHenneberry, Tomen_US
dc.date.issued1988-03-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalCotton: A College of Agriculture Reporten_US
dc.description.abstractDuring 1987, a sequential sampling plan for pink bollworm eggs was field-tested in eight 40-acre fields in the Palo Verde Valley, CA. Final analysis of the sequential procedure, including the time necessary to collect and check all bolls, required an average sampling time of 16 minutes/field, approximately a 70% savings over the fixed sample size of 160 bolls/field. Using the sequential plan, the number of bolls examined averaged 46.75/field. The sequential sampling plan error rate for making no-treat recommendations when a field actually required treatment (i.e., actual egg infestation 6%) averaged only 6.4% throughout the season. A final sequential sampling chart, based on the field validation data, is presented.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectCotton -- Arizonaen_US
dc.subjectCotton -- Insect investigationsen_US
dc.identifier.urihttp://hdl.handle.net/10150/204502-
dc.relation.ispartofseries370072en_US
dc.relation.ispartofseriesSeries P-72en_US
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