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אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Effectiveness of short exposures of propylene oxide alone and in combination with low pressure or carbon dioxide against Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)
Year:
2004
Authors :
דיאס, רפי
;
.
נברו, שלמה
;
.
עזריאלי, אבי
;
.
פינקלמן, שמחה
;
.
רינדנר, מרים
;
.
Volume :
40
Co-Authors:
Navarro, S., Department of Stored Products, Agricultural Research Organization, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Isikber, A.A., Department of Plant Protection, Faculty of Agriculture, Univ. of Kahramanmaras Sutcu Imam, Kahramanmaras 46060, Turkey
Finkelman, S., Department of Stored Products, Agricultural Research Organization, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Rindner, M., Department of Stored Products, Agricultural Research Organization, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Azrieli, A., Department of Stored Products, Agricultural Research Organization, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Dias, R., Department of Stored Products, Agricultural Research Organization, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Facilitators :
From page:
197
To page:
205
(
Total pages:
9
)
Abstract:
Toxicity of the fumigant propylene oxide (PPO) alone and in combination with low pressure (100 mm Hg) or 92% CO2 to all life stages of Tribolium castaneum using short exposure times (4 and 8 h) at 30°C was studied. Results indicated that PPO was moderately toxic with Ct products ranging from 120 to 608 mg h/l required to obtain complete mortality of the different life stages. A marked difference in susceptibility between life stages was recorded. Eggs were the most sensitive with a LD99 value of 30.1 mg/l for 4 h, whereas pupae were the most tolerant with a LD 99 value of 146.5 mg/l. It was shown that an increase in exposure time from 4 to 8 h resulted in 23%, 42%, 48% and 47% reductions of LD 99 values for eggs, larvae, pupae and adults, respectively. There was no or very limited mortality of all stages except the egg (53% to 62%), when exposed to either 100 mm Hg or 92% CO2 for 4 h. However, when 100 mm Hg or 92% CO2 were combined with PPO, the LD50 and LD99 values for PPO in all stages except the egg were significantly reduced. Combinations of PPO with 100 mm Hg or 92% CO2 produced equal reductions in the LD99 value from 146.5 to about 22 mg/l for the most tolerant pupal stage. Both combinations also produced significant reductions in the LD99 values for larvae and adults (6.3- to 6.6-fold) compared with those exposed to PPO alone. These results indicated that 100 mm Hg and 92% CO2 each had a synergistic effect on the toxicity of PPO to T. castaneum. The combination of PPO with vacuum or CO 2 can thus provide a potential alternative to methyl bromide. © 2003 Elsevier Science Ltd. All rights reserved.
Note:
Related Files :
Carbon dioxide
Coleoptera
Propylene oxide
Synergistic effect
Tenebrionidae
Tribolium castaneum
Vacuum fumigation
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/S0022-474X(02)00097-8
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
26674
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:24
Scientific Publication
Effectiveness of short exposures of propylene oxide alone and in combination with low pressure or carbon dioxide against Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)
40
Navarro, S., Department of Stored Products, Agricultural Research Organization, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Isikber, A.A., Department of Plant Protection, Faculty of Agriculture, Univ. of Kahramanmaras Sutcu Imam, Kahramanmaras 46060, Turkey
Finkelman, S., Department of Stored Products, Agricultural Research Organization, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Rindner, M., Department of Stored Products, Agricultural Research Organization, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Azrieli, A., Department of Stored Products, Agricultural Research Organization, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Dias, R., Department of Stored Products, Agricultural Research Organization, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Effectiveness of short exposures of propylene oxide alone and in combination with low pressure or carbon dioxide against Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)
Toxicity of the fumigant propylene oxide (PPO) alone and in combination with low pressure (100 mm Hg) or 92% CO2 to all life stages of Tribolium castaneum using short exposure times (4 and 8 h) at 30°C was studied. Results indicated that PPO was moderately toxic with Ct products ranging from 120 to 608 mg h/l required to obtain complete mortality of the different life stages. A marked difference in susceptibility between life stages was recorded. Eggs were the most sensitive with a LD99 value of 30.1 mg/l for 4 h, whereas pupae were the most tolerant with a LD 99 value of 146.5 mg/l. It was shown that an increase in exposure time from 4 to 8 h resulted in 23%, 42%, 48% and 47% reductions of LD 99 values for eggs, larvae, pupae and adults, respectively. There was no or very limited mortality of all stages except the egg (53% to 62%), when exposed to either 100 mm Hg or 92% CO2 for 4 h. However, when 100 mm Hg or 92% CO2 were combined with PPO, the LD50 and LD99 values for PPO in all stages except the egg were significantly reduced. Combinations of PPO with 100 mm Hg or 92% CO2 produced equal reductions in the LD99 value from 146.5 to about 22 mg/l for the most tolerant pupal stage. Both combinations also produced significant reductions in the LD99 values for larvae and adults (6.3- to 6.6-fold) compared with those exposed to PPO alone. These results indicated that 100 mm Hg and 92% CO2 each had a synergistic effect on the toxicity of PPO to T. castaneum. The combination of PPO with vacuum or CO 2 can thus provide a potential alternative to methyl bromide. © 2003 Elsevier Science Ltd. All rights reserved.
Scientific Publication
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