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פותח על ידי קלירמאש פתרונות בע"מ -
The combined influence of temperature and modified atmospheres on Tribolium castaneum (Herbst) (coleoptera: Tenebrionidae)
Year:
1996
Authors :
דונהאי, עזרא יונתן
;
.
נברו, שלמה
;
.
עזריאלי, אבי
;
.
רינדנר, מרים
;
.
Volume :
32
Co-Authors:
Facilitators :
From page:
225
To page:
232
(
Total pages:
8
)
Abstract:
In laboratory experiments, egg, larval, pupal, and adult stages of the red flour beetle Tribolium castaneum (Herbst) were exposed to three low oxygen concentrations realistically obtainable under hermetic storage conditions, at three temperatures of 26, 30, and 35°C. The gas concentrations were: 1% O2, 85% N2, 14% CO2; 2% O2, 84.7% N2, 13.3% CO2; 3% O2, 85% N2, 12% CO2 (all at 75% relative humidity). When exposed to the 3% O2 level at 26°C, adults were most tolerant with a mortality of 70.5% when exposed for 10 d. To obtain 99% mortality at 35°C with the atmosphere containing 1% O2, a maximum of only 44 h was required for the most tolerant stage, namely the pupa. Comparison of exposure times required to produce 50% kill (LT50) showed that the effect of temperature on mortality rates was pronounced at all three levels of O2; for all the insect stages, values of LT50 at 35°C ranged between 0.16 and 0.5 times those at 26°C. The insects were also submitted to a gas mixture containing 1% O2 in 99% N2 representing a mixture obtainable by N2 flushing techniques. At the higher temperatures, differences in mortality from those obtained on exposure to 1% O2:85% N2:14% CO2 were not significant. However, at 26°C, mortality levels of insects exposed to this mixture were lower, particularly for adults and eggs.
Note:
Related Files :
Hermetic storage
hypoxia
modified atmospheres
temperature
Tribolium castaneum
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/S0022-474X(96)00018-5
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
26524
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:23
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Scientific Publication
The combined influence of temperature and modified atmospheres on Tribolium castaneum (Herbst) (coleoptera: Tenebrionidae)
32
The combined influence of temperature and modified atmospheres on Tribolium castaneum (Herbst) (coleoptera: Tenebrionidae)
In laboratory experiments, egg, larval, pupal, and adult stages of the red flour beetle Tribolium castaneum (Herbst) were exposed to three low oxygen concentrations realistically obtainable under hermetic storage conditions, at three temperatures of 26, 30, and 35°C. The gas concentrations were: 1% O2, 85% N2, 14% CO2; 2% O2, 84.7% N2, 13.3% CO2; 3% O2, 85% N2, 12% CO2 (all at 75% relative humidity). When exposed to the 3% O2 level at 26°C, adults were most tolerant with a mortality of 70.5% when exposed for 10 d. To obtain 99% mortality at 35°C with the atmosphere containing 1% O2, a maximum of only 44 h was required for the most tolerant stage, namely the pupa. Comparison of exposure times required to produce 50% kill (LT50) showed that the effect of temperature on mortality rates was pronounced at all three levels of O2; for all the insect stages, values of LT50 at 35°C ranged between 0.16 and 0.5 times those at 26°C. The insects were also submitted to a gas mixture containing 1% O2 in 99% N2 representing a mixture obtainable by N2 flushing techniques. At the higher temperatures, differences in mortality from those obtained on exposure to 1% O2:85% N2:14% CO2 were not significant. However, at 26°C, mortality levels of insects exposed to this mixture were lower, particularly for adults and eggs.
Scientific Publication
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