Simulation of boll weevil (Coleoptera: Curculionidae) spring emergence and overwintering survival in the Texas Rolling Plains

A degree-day model of boll weevil, Anthonomus grandis Boheman, spring emergence and survivorship in the Rolling Plains of Texas was developed and validated based on seven years of data that describe emergence rates of cohorts of boll weevils caged in the overwintering habitat of sand shinnery oak. T...

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Bibliographic Details
Published inEnvironmental entomology Vol. 19; no. 1
Main Authors Stone, N.D. (Virginia Polytechnic Institute and State University, Blacksburg, VA), Rummel, D.R, Carroll, S, Makela, M.E, Frisbie, R.E
Format Journal Article
LanguageEnglish
Published 01.02.1990
Subjects
ANTHONOMUS
DIAPAUSA
DIAPAUSE
GOSSYPIUM HIRSUTUM
HIVER
INVIERNO
MODELE
MODELOS
MORTALIDAD
MORTALITE
TEXAS
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Summary:A degree-day model of boll weevil, Anthonomus grandis Boheman, spring emergence and survivorship in the Rolling Plains of Texas was developed and validated based on seven years of data that describe emergence rates of cohorts of boll weevils caged in the overwintering habitat of sand shinnery oak. The spring emergence profile was well described by a degree-day model in which the 50 and 80% points of emergence varied according to two indices of winter severity: a modified interaction term of rainfall and degree-days, and the negative degree-days accumulated during the longest run of days with temperatures below 3.9 degrees C. These factors also were used to predict boll weevil overwintering survival, suggesting that the two processes are linked. A conceptual model of this linkage is presented
Bibliography:9030088
H10
ISSN:0046-225X
1938-2936
DOI:10.1093/ee/19.1.91