Laboratory efficacy of mycoparasitic fungi (Aspergillus tubingensis and Trichoderma harzianum) against tropical bed bugs (Cimex hemipterus) (Hemiptera: Cimicidae)
Objective: To test the effectiveness of conidial spore formulations [Aspergillus tubingensis (A. tubingensis) and Trichoderma harzianum (T. harzianum)] against tropical bed bugs, Cimex hemipterus. Methods: Spore formulations were made from two fungal strains, T. harzianum and A. tubingensis. The bed...
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Wolters Kluwer Medknow Publications
2017
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ftdoajarticles:oai:doaj.org/article:ab2dab0157fd4f1d8c9d808c334e0ecf 2023-05-15T15:09:26+02:00 Laboratory efficacy of mycoparasitic fungi (Aspergillus tubingensis and Trichoderma harzianum) against tropical bed bugs (Cimex hemipterus) (Hemiptera: Cimicidae) Zulaikha Zahran Nik Mohd Izham Mohamed Nor Hamady Dieng Tomomitsu Satho Abdul Hafiz Ab Majid 2017-04-01T00:00:00Z https://doi.org/10.1016/j.apjtb.2016.12.021 https://doaj.org/article/ab2dab0157fd4f1d8c9d808c334e0ecf EN eng Wolters Kluwer Medknow Publications http://www.sciencedirect.com/science/article/pii/S2221169117300394 https://doaj.org/toc/2221-1691 2221-1691 doi:10.1016/j.apjtb.2016.12.021 https://doaj.org/article/ab2dab0157fd4f1d8c9d808c334e0ecf Asian Pacific Journal of Tropical Biomedicine, Vol 7, Iss 4, Pp 288-293 (2017) Tropical bed bug Mycoparasitic fungi Aspergillus tubingensis Trichoderma harzianum Bio-control Arctic medicine. Tropical medicine RC955-962 Biology (General) QH301-705.5 article 2017 ftdoajarticles https://doi.org/10.1016/j.apjtb.2016.12.021 2022-12-31T02:52:22Z Objective: To test the effectiveness of conidial spore formulations [Aspergillus tubingensis (A. tubingensis) and Trichoderma harzianum (T. harzianum)] against tropical bed bugs, Cimex hemipterus. Methods: Spore formulations were made from two fungal strains, T. harzianum and A. tubingensis. The bed bugs were exposed to the conidial spores placed soaked onto a fabric cloth for 1 h and the mortality counts were recorded daily until 14 days. Results: Mean survival times based on Kaplan–Meier survival analysis showed no significant differences between all the concentrations in both the fungal isolates: T. harzianum and A. tubingensis. However, the evaluation of both the isolates in terms of virulence resulted in low lethal hours in all the concentrations except for the high concentration of A. tubingensis (LT50 = 44.629 h) at the conidial exposure of 1 × 106 spores/mL. Rapid mortality of the bed bugs was observed from Day 6 to Day 12, ranging from 13% to 90% in all three concentrations of A. tubingensis. With reference to the T. harzianum exposure, the concentration of 1 × 104 spores/mL displayed a gradual increase in the percentage mortality of 90 on Day 14. Conclusions: Approaches to the bed bugs treatment should be explored in-depth using a natural biological agent like fungus especially A. tubingensis to reduce this pest population, in order to replace chemical methods. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Meier ENVELOPE(-45.900,-45.900,-60.633,-60.633) Asian Pacific Journal of Tropical Biomedicine 7 4 288 293 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
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Tropical bed bug Mycoparasitic fungi Aspergillus tubingensis Trichoderma harzianum Bio-control Arctic medicine. Tropical medicine RC955-962 Biology (General) QH301-705.5 |
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Tropical bed bug Mycoparasitic fungi Aspergillus tubingensis Trichoderma harzianum Bio-control Arctic medicine. Tropical medicine RC955-962 Biology (General) QH301-705.5 Zulaikha Zahran Nik Mohd Izham Mohamed Nor Hamady Dieng Tomomitsu Satho Abdul Hafiz Ab Majid Laboratory efficacy of mycoparasitic fungi (Aspergillus tubingensis and Trichoderma harzianum) against tropical bed bugs (Cimex hemipterus) (Hemiptera: Cimicidae) |
topic_facet |
Tropical bed bug Mycoparasitic fungi Aspergillus tubingensis Trichoderma harzianum Bio-control Arctic medicine. Tropical medicine RC955-962 Biology (General) QH301-705.5 |
description |
Objective: To test the effectiveness of conidial spore formulations [Aspergillus tubingensis (A. tubingensis) and Trichoderma harzianum (T. harzianum)] against tropical bed bugs, Cimex hemipterus. Methods: Spore formulations were made from two fungal strains, T. harzianum and A. tubingensis. The bed bugs were exposed to the conidial spores placed soaked onto a fabric cloth for 1 h and the mortality counts were recorded daily until 14 days. Results: Mean survival times based on Kaplan–Meier survival analysis showed no significant differences between all the concentrations in both the fungal isolates: T. harzianum and A. tubingensis. However, the evaluation of both the isolates in terms of virulence resulted in low lethal hours in all the concentrations except for the high concentration of A. tubingensis (LT50 = 44.629 h) at the conidial exposure of 1 × 106 spores/mL. Rapid mortality of the bed bugs was observed from Day 6 to Day 12, ranging from 13% to 90% in all three concentrations of A. tubingensis. With reference to the T. harzianum exposure, the concentration of 1 × 104 spores/mL displayed a gradual increase in the percentage mortality of 90 on Day 14. Conclusions: Approaches to the bed bugs treatment should be explored in-depth using a natural biological agent like fungus especially A. tubingensis to reduce this pest population, in order to replace chemical methods. |
format |
Article in Journal/Newspaper |
author |
Zulaikha Zahran Nik Mohd Izham Mohamed Nor Hamady Dieng Tomomitsu Satho Abdul Hafiz Ab Majid |
author_facet |
Zulaikha Zahran Nik Mohd Izham Mohamed Nor Hamady Dieng Tomomitsu Satho Abdul Hafiz Ab Majid |
author_sort |
Zulaikha Zahran |
title |
Laboratory efficacy of mycoparasitic fungi (Aspergillus tubingensis and Trichoderma harzianum) against tropical bed bugs (Cimex hemipterus) (Hemiptera: Cimicidae) |
title_short |
Laboratory efficacy of mycoparasitic fungi (Aspergillus tubingensis and Trichoderma harzianum) against tropical bed bugs (Cimex hemipterus) (Hemiptera: Cimicidae) |
title_full |
Laboratory efficacy of mycoparasitic fungi (Aspergillus tubingensis and Trichoderma harzianum) against tropical bed bugs (Cimex hemipterus) (Hemiptera: Cimicidae) |
title_fullStr |
Laboratory efficacy of mycoparasitic fungi (Aspergillus tubingensis and Trichoderma harzianum) against tropical bed bugs (Cimex hemipterus) (Hemiptera: Cimicidae) |
title_full_unstemmed |
Laboratory efficacy of mycoparasitic fungi (Aspergillus tubingensis and Trichoderma harzianum) against tropical bed bugs (Cimex hemipterus) (Hemiptera: Cimicidae) |
title_sort |
laboratory efficacy of mycoparasitic fungi (aspergillus tubingensis and trichoderma harzianum) against tropical bed bugs (cimex hemipterus) (hemiptera: cimicidae) |
publisher |
Wolters Kluwer Medknow Publications |
publishDate |
2017 |
url |
https://doi.org/10.1016/j.apjtb.2016.12.021 https://doaj.org/article/ab2dab0157fd4f1d8c9d808c334e0ecf |
long_lat |
ENVELOPE(-45.900,-45.900,-60.633,-60.633) |
geographic |
Arctic Meier |
geographic_facet |
Arctic Meier |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Asian Pacific Journal of Tropical Biomedicine, Vol 7, Iss 4, Pp 288-293 (2017) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2221169117300394 https://doaj.org/toc/2221-1691 2221-1691 doi:10.1016/j.apjtb.2016.12.021 https://doaj.org/article/ab2dab0157fd4f1d8c9d808c334e0ecf |
op_doi |
https://doi.org/10.1016/j.apjtb.2016.12.021 |
container_title |
Asian Pacific Journal of Tropical Biomedicine |
container_volume |
7 |
container_issue |
4 |
container_start_page |
288 |
op_container_end_page |
293 |
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1766340629286092800 |