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Damage potential of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) on cocoa beans: effect of initial adult population density and post infestation storage time

The effect of different initial adult population densities of Tribolium castaneum (Herbst) at several post infestation storage times on the final adult population density, the percentage of damaged beans, the percentage of weight loss, and the weight of insect feeding residues on cocoa beans was inv...

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Main Authors: Abdullahi, Gambo, Muhamad Awang, Rita, Omar, Dzolkhifli, Sinniah, Uma Rani
Format: Article
Language:English
Published: Elsevier 2018
Online Access:http://psasir.upm.edu.my/id/eprint/72167/1/Damage%20potential%20of%20Tribolium%20castaneum.pdf
http://psasir.upm.edu.my/id/eprint/72167/
https://www.sciencedirect.com/science/article/pii/S0022474X17301728
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spelling my.upm.eprints.721672020-03-05T03:53:01Z http://psasir.upm.edu.my/id/eprint/72167/ Damage potential of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) on cocoa beans: effect of initial adult population density and post infestation storage time Abdullahi, Gambo Muhamad Awang, Rita Omar, Dzolkhifli Sinniah, Uma Rani The effect of different initial adult population densities of Tribolium castaneum (Herbst) at several post infestation storage times on the final adult population density, the percentage of damaged beans, the percentage of weight loss, and the weight of insect feeding residues on cocoa beans was investigated in laboratory experiments. Both factors interactively had highly significant (P < 0.01) effects on variables assessed. The highest mean final adult population density of 129.7 ± 4.6 was recorded in samples infested with the highest initial adult population density and stored for 150 d, while the least mean adult population density of 10.8 ± 0.54 was recorded on samples infested with the lowest initial adult population density in samples stored for 30 d. The highest percentage damaged cocoa beans 51.0 ± 1.21% was recorded in samples infested with the highest initial adult population density, while the least mean percentage damaged beans of 16.9 ± 1.26% was also recorded on samples infested with the lowest initial adult population density. Similar trends of means were recorded for all the remaining variables. Correlation between factors was significant and positive. Multiple and simple linear regressions analyses were also significant (P < 0.01) and all equations fitted the regression models and perfectly described the relationship between the independent and the dependent variables. Our results show that T. castaneum can impact negatively on both the quantity and quality of stored cocoa within just 30 days of infestation, with the impact increasing with increasing population density and post infestation storage time. Elsevier 2018-01 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/72167/1/Damage%20potential%20of%20Tribolium%20castaneum.pdf Abdullahi, Gambo and Muhamad Awang, Rita and Omar, Dzolkhifli and Sinniah, Uma Rani (2018) Damage potential of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) on cocoa beans: effect of initial adult population density and post infestation storage time. Journal of Stored Products Research, 75. pp. 1-9. ISSN 0022-474X https://www.sciencedirect.com/science/article/pii/S0022474X17301728 10.1016/j.jspr.2017.11.001
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description The effect of different initial adult population densities of Tribolium castaneum (Herbst) at several post infestation storage times on the final adult population density, the percentage of damaged beans, the percentage of weight loss, and the weight of insect feeding residues on cocoa beans was investigated in laboratory experiments. Both factors interactively had highly significant (P < 0.01) effects on variables assessed. The highest mean final adult population density of 129.7 ± 4.6 was recorded in samples infested with the highest initial adult population density and stored for 150 d, while the least mean adult population density of 10.8 ± 0.54 was recorded on samples infested with the lowest initial adult population density in samples stored for 30 d. The highest percentage damaged cocoa beans 51.0 ± 1.21% was recorded in samples infested with the highest initial adult population density, while the least mean percentage damaged beans of 16.9 ± 1.26% was also recorded on samples infested with the lowest initial adult population density. Similar trends of means were recorded for all the remaining variables. Correlation between factors was significant and positive. Multiple and simple linear regressions analyses were also significant (P < 0.01) and all equations fitted the regression models and perfectly described the relationship between the independent and the dependent variables. Our results show that T. castaneum can impact negatively on both the quantity and quality of stored cocoa within just 30 days of infestation, with the impact increasing with increasing population density and post infestation storage time.
format Article
author Abdullahi, Gambo
Muhamad Awang, Rita
Omar, Dzolkhifli
Sinniah, Uma Rani
spellingShingle Abdullahi, Gambo
Muhamad Awang, Rita
Omar, Dzolkhifli
Sinniah, Uma Rani
Damage potential of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) on cocoa beans: effect of initial adult population density and post infestation storage time
author_facet Abdullahi, Gambo
Muhamad Awang, Rita
Omar, Dzolkhifli
Sinniah, Uma Rani
author_sort Abdullahi, Gambo
title Damage potential of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) on cocoa beans: effect of initial adult population density and post infestation storage time
title_short Damage potential of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) on cocoa beans: effect of initial adult population density and post infestation storage time
title_full Damage potential of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) on cocoa beans: effect of initial adult population density and post infestation storage time
title_fullStr Damage potential of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) on cocoa beans: effect of initial adult population density and post infestation storage time
title_full_unstemmed Damage potential of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) on cocoa beans: effect of initial adult population density and post infestation storage time
title_sort damage potential of tribolium castaneum (herbst) (coleoptera: tenebrionidae) on cocoa beans: effect of initial adult population density and post infestation storage time
publisher Elsevier
publishDate 2018
url http://psasir.upm.edu.my/id/eprint/72167/1/Damage%20potential%20of%20Tribolium%20castaneum.pdf
http://psasir.upm.edu.my/id/eprint/72167/
https://www.sciencedirect.com/science/article/pii/S0022474X17301728
_version_ 1662756483199139840
score 13.211869

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