Heliothis zea (Lepidoptera: Noctuidae) eggs in soybeans: within-field distribution and precision level sequential count plans

Analyses of four dispersion indices of Heliothis zea (Boddie) egg from 0.31-m row samples of soybeans (Glycine max (L.) Merrill) indicated aggregated patterns for most data sets taken during 1980-1982 when mean density was 2.00 eggs/0.31-m row. Coefficients from regression equations of mean crowding...

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Veröffentlicht in:	Environmental entomology 1989-12, Vol.18 (6), p.908-916
Hauptverfasser:	Terry, I. (University of Arizona, Tucson, AZ), Bradley, J.R. Jr, Van Duyn, J.W
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal and plant ecology Animal, plant and microbial ecology Animals Autoecology Biological and medical sciences CAROLINA DEL NORTE CAROLINE DU NORD DENSIDAD DE LA POBLACION DENSITE DE POPULATION Fundamental and applied biological sciences. Psychology GLYCINE MAX HELIOTHIS Lepidoptera Noctuidae OVULE OVULO Protozoa. Invertebrata
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Beschreibung
Zusammenfassung:	Analyses of four dispersion indices of Heliothis zea (Boddie) egg from 0.31-m row samples of soybeans (Glycine max (L.) Merrill) indicated aggregated patterns for most data sets taken during 1980-1982 when mean density was 2.00 eggs/0.31-m row. Coefficients from regression equations of mean crowding on mean density and log variance on log mean also indicated aggregated patterns. Coefficients from regressions of mean crowding on mean density were used to develop sequential precision level sampling plans
ISSN:	0046-225X 1938-2936
DOI:	10.1093/ee/18.6.908