Partitioning boll weevil (Coleoptera: Curculionidae) mortality associated with high temperature: desiccation or thermal death?

Mortality of boll weevil, Anthonomus grandis Boheman, larvae and pupae resulting from exposure to high temperature can be partitioned into two categories, "desiccation" and thermal death. Larvae and pupae that die from thermal death turn a grey-brown color after death, do not move when pro...

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Veröffentlicht in:Environmental entomology 1990-10, Vol.19 (5), p.1457-1462
Hauptverfasser: Sterling, W. (Texas AandM University, College Station, TX), Dean, A, Hartstack, A, Witz, J
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container_end_page 1462
container_issue 5
container_start_page 1457
container_title Environmental entomology
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creator Sterling, W. (Texas AandM University, College Station, TX)
Dean, A
Hartstack, A
Witz, J
description Mortality of boll weevil, Anthonomus grandis Boheman, larvae and pupae resulting from exposure to high temperature can be partitioned into two categories, "desiccation" and thermal death. Larvae and pupae that die from thermal death turn a grey-brown color after death, do not move when probed or squeezed, and lose the resiliency of their integument. Those dying from "desiccation" will show the same characteristics but do not turn the grey-brown color; they generally retain the same color as live insects but have a very dried-out appearance. Thermal death is a function of exposure time and high temperatures. Low levels of thermal mortality appear in less than or equal to 3 h at 54.4 degree C. An estimated 99% mortality should result from a 2-h 18-min exposure at 60 degree C.
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1938-2936
language eng
recordid cdi_proquest_miscellaneous_15832504
source Oxford Journals A-Z Collection
subjects Animal, plant and microbial ecology
ANTHONOMUS GRANDIS
Biological and medical sciences
Coleoptera
Curculionidae
Fundamental and applied biological sciences. Psychology
insect desiccation
LARVAE
LARVAS
LARVE
MODELE
MODELOS
MORTALIDAD
MORTALITE
MORTALITY
PUPAE
PUPAS
PUPE
TEMPERATURA
TEMPERATURE
title Partitioning boll weevil (Coleoptera: Curculionidae) mortality associated with high temperature: desiccation or thermal death?
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