Sequential sampling plan for scheduling control of lepidopteran pests of fresh market sweet corn

Sequential sampling plan for scheduling control of lepidopteran pests of fresh market sweet corn

Counts of corn plants infested by European corn borer, Ostrinia nubilalis (Huebner), fall armyworm, Spodoptera frugiperda (J. E. Smith), and corn earworm, Helicoverpa zea (Boddie), were described by binomial and beta-binomial probability distribution functions. Two sequential classification sampling...

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Bibliographic Details
Published in:Journal of economic entomology Vol. 89; no. 2; pp. 386 - 395
Main Authors: HOFFMANN, M. P, NYROP, J. P, KIRKWYLAND, J. J, RIGGS, D. M, GILREIN, D. O, MOYER, D. D
Format: Journal Article
Language:English
Published: Lanham, MD Entomological Society of America 01-04-1996
Subjects:
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Generalities
Helicoverpa zea
Lepidoptera
Noctuidae
Ostrinia nubilalis
Phytopathology. Animal pests. Plant and forest protection
Protozoa. Invertebrates
Pyralidae
Spodoptera frugiperda
Zea mays
Monocotyledones
Zea mays
Insecta
Spodoptera frugiperda
Ostrinia nubilalis
Method
Cereal crop
Pyralidae
Pest
Simulation
Sequential
Gramineae
Helicoverpa zea
Arthropoda
Angiospermae
Lepidoptera
Classification
Binomial distribution
Spermatophyta
Noctuidae
Invertebrata
Sampling
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Summary:Counts of corn plants infested by European corn borer, Ostrinia nubilalis (Huebner), fall armyworm, Spodoptera frugiperda (J. E. Smith), and corn earworm, Helicoverpa zea (Boddie), were described by binomial and beta-binomial probability distribution functions. Two sequential classification sampling plans were constructed using thresholds of 15 and 5% infested plants. Stop lines for these sampling plans were constructed using a binomial model. The precision with which these plants classified the proportion of infested plants when sample counts were distributed according to a beta-binomial distribution was determined using simulation. When counts were beta-binomially distributed, precision was reduced. Sampling plans were judged to be acceptable though because the overall operating characteristic function obtained after repeatedly sampling a population 2 or 3 times was shifted to the left on the proportion of infested plants scale resulting in an increased likelihood of reaching a decision to intervene. Field evaluation of the sampling plans revealed that they classified pest infestation very precisely and on average, resulted in a 45% savings in sample costs when compared with a fixed sample size.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-0493
1938-291X
DOI:10.1093/jee/89.2.386