Effect of botanical powders and the assassin bug, Alloeocranum biannulipes Mont. and Sign. (Hemiptera: Reduviidae) against Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) infesting yam chips [version 2; peer review: 2 approved, 1 approved with reservations]
Background Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) is the main pest of stored dried yam chips that causes significant losses in less than 3 months. The assassin bug, Alloeocranum biannulipes (Montrouzier & Signoret) (Hemiptera: Reduviidae) and the African mahogany (Khaya senegalensi...
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F1000 Research Ltd
2025-01-01
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| Online Access: | https://openresearchafrica.org/articles/7-7/v2 |
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| author | Kitherian SAHAYARAJ Antonio SINZOGAN Manuele TAMO Joelle TOFFA Yêyinou Laura Estelle LOKO Armand VODOUNNON Innocent DJEGBE |
| author_facet | Kitherian SAHAYARAJ Antonio SINZOGAN Manuele TAMO Joelle TOFFA Yêyinou Laura Estelle LOKO Armand VODOUNNON Innocent DJEGBE |
| author_sort | Kitherian SAHAYARAJ |
| collection | DOAJ |
| description | Background Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) is the main pest of stored dried yam chips that causes significant losses in less than 3 months. The assassin bug, Alloeocranum biannulipes (Montrouzier & Signoret) (Hemiptera: Reduviidae) and the African mahogany (Khaya senegalensis (Desv.) A. Juss. (Meliaceae)), the ackee (Blighia sapida K. Koenig (Sapindaceae)), and bridelia (Bridelia ferruginea Benth. (Euphorbiaceae)) leaf powders have proven to be efficient in the control of this pest. Methods This study aims to evaluate the compatibility of the leaf powders of these medicinal plants and the predator A. biannulipes in the integrated management of D. porcellus under laboratory and farm conditions. Various leaf powders were tested at a concentration of 6% (w/w) with or without the predator. Infested yam chips without any treatment served as negative control and those mixed with a synthetic insecticide as positive control. The mortality rate of D. porcellus was recorded under laboratory conditions. While, the dynamic population of D. porcellus, their damage, and weight loss of yam chips were recorded 8 weeks after treatment under farm conditions. Results The results revealed that no combination of leaf powders and predators could induce complete mortality of D. porcellus like the synthetic insecticide. No significant difference in terms of the survival of A. biannulipes exposed to botanical powders was observed compared to the positive control. Under farm conditions, B. ferruginea leaf powder showed a sub-lethal effect on the predator A. biannulipes and no impact on the abundance of D. porcellus. However, the survival of D. porcellus was significantly reduced by the combination of K. senegalensis leaf powder and A. biannulipes, which did not allow the reproduction of the predator. Conclusions Our results suggest that an augmentative biological control program with the release of A. biannulipes after the introduction of K. senegalensis leaf powder is practicable for the management of D. porcellus in yam chips. |
| format | Article |
| id | doaj-art-a75bd4d4dcdd45b8a2dbc6a3342f4fa8 |
| institution | Kabale University |
| issn | 2752-6925 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | F1000 Research Ltd |
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| spelling | doaj-art-a75bd4d4dcdd45b8a2dbc6a3342f4fa82025-01-29T01:00:00ZengF1000 Research LtdOpen Research Africa2752-69252025-01-01716855Effect of botanical powders and the assassin bug, Alloeocranum biannulipes Mont. and Sign. (Hemiptera: Reduviidae) against Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) infesting yam chips [version 2; peer review: 2 approved, 1 approved with reservations]Kitherian SAHAYARAJ0Antonio SINZOGAN1Manuele TAMO2Joelle TOFFA3Yêyinou Laura Estelle LOKO4https://orcid.org/0000-0002-7310-1334Armand VODOUNNON5Innocent DJEGBE6Crop Protection Research Centre (CPRC), Department of Zoology, St. Xavier’s College (Autonomous), Palayamkottai, Tamil Nadu, 627002, IndiaFaculty of Agronomic Sciences, Universite d'Abomey-Calavi, Abomey-Calavi, 03 BP 2819, BeninInternational Institute of Tropical Agriculture (IITA-Benin), Abomey-Calavi, 08 BP 0932, BeninLaboratoire de Zoologie Appliquée et Santé des Végétaux (ZASVE), Ecole Nationale Supérieure des Biosciences et Biotechnologies Appliquées (ENSBBA), Université Nationale des Sciences, Technologies, Ingénierie et Mathématiques (UNSTIM), Dassa-Zoumé, Collines, BP 14, BeninLaboratoire de Zoologie Appliquée et Santé des Végétaux (ZASVE), Ecole Nationale Supérieure des Biosciences et Biotechnologies Appliquées (ENSBBA), Université Nationale des Sciences, Technologies, Ingénierie et Mathématiques (UNSTIM), Dassa-Zoumé, Collines, BP 14, BeninLaboratoire de Zoologie Appliquée et Santé des Végétaux (ZASVE), Ecole Nationale Supérieure des Biosciences et Biotechnologies Appliquées (ENSBBA), Université Nationale des Sciences, Technologies, Ingénierie et Mathématiques (UNSTIM), Dassa-Zoumé, Collines, BP 14, BeninEcole Normale Supérieure de Natitingou, Université Nationale des Sciences, Technologies, Ingénierie et Mathématiques (UNSTIM), BP 72 Natitingou, BeninBackground Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) is the main pest of stored dried yam chips that causes significant losses in less than 3 months. The assassin bug, Alloeocranum biannulipes (Montrouzier & Signoret) (Hemiptera: Reduviidae) and the African mahogany (Khaya senegalensis (Desv.) A. Juss. (Meliaceae)), the ackee (Blighia sapida K. Koenig (Sapindaceae)), and bridelia (Bridelia ferruginea Benth. (Euphorbiaceae)) leaf powders have proven to be efficient in the control of this pest. Methods This study aims to evaluate the compatibility of the leaf powders of these medicinal plants and the predator A. biannulipes in the integrated management of D. porcellus under laboratory and farm conditions. Various leaf powders were tested at a concentration of 6% (w/w) with or without the predator. Infested yam chips without any treatment served as negative control and those mixed with a synthetic insecticide as positive control. The mortality rate of D. porcellus was recorded under laboratory conditions. While, the dynamic population of D. porcellus, their damage, and weight loss of yam chips were recorded 8 weeks after treatment under farm conditions. Results The results revealed that no combination of leaf powders and predators could induce complete mortality of D. porcellus like the synthetic insecticide. No significant difference in terms of the survival of A. biannulipes exposed to botanical powders was observed compared to the positive control. Under farm conditions, B. ferruginea leaf powder showed a sub-lethal effect on the predator A. biannulipes and no impact on the abundance of D. porcellus. However, the survival of D. porcellus was significantly reduced by the combination of K. senegalensis leaf powder and A. biannulipes, which did not allow the reproduction of the predator. Conclusions Our results suggest that an augmentative biological control program with the release of A. biannulipes after the introduction of K. senegalensis leaf powder is practicable for the management of D. porcellus in yam chips.https://openresearchafrica.org/articles/7-7/v2Yam beetle Dioscorea spp. Bioactivity Farm storage Integrated pest managementeng |
| spellingShingle | Kitherian SAHAYARAJ Antonio SINZOGAN Manuele TAMO Joelle TOFFA Yêyinou Laura Estelle LOKO Armand VODOUNNON Innocent DJEGBE Effect of botanical powders and the assassin bug, Alloeocranum biannulipes Mont. and Sign. (Hemiptera: Reduviidae) against Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) infesting yam chips [version 2; peer review: 2 approved, 1 approved with reservations] Open Research Africa Yam beetle Dioscorea spp. Bioactivity Farm storage Integrated pest management eng |
| title | Effect of botanical powders and the assassin bug, Alloeocranum biannulipes Mont. and Sign. (Hemiptera: Reduviidae) against Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) infesting yam chips [version 2; peer review: 2 approved, 1 approved with reservations] |
| title_full | Effect of botanical powders and the assassin bug, Alloeocranum biannulipes Mont. and Sign. (Hemiptera: Reduviidae) against Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) infesting yam chips [version 2; peer review: 2 approved, 1 approved with reservations] |
| title_fullStr | Effect of botanical powders and the assassin bug, Alloeocranum biannulipes Mont. and Sign. (Hemiptera: Reduviidae) against Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) infesting yam chips [version 2; peer review: 2 approved, 1 approved with reservations] |
| title_full_unstemmed | Effect of botanical powders and the assassin bug, Alloeocranum biannulipes Mont. and Sign. (Hemiptera: Reduviidae) against Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) infesting yam chips [version 2; peer review: 2 approved, 1 approved with reservations] |
| title_short | Effect of botanical powders and the assassin bug, Alloeocranum biannulipes Mont. and Sign. (Hemiptera: Reduviidae) against Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) infesting yam chips [version 2; peer review: 2 approved, 1 approved with reservations] |
| title_sort | effect of botanical powders and the assassin bug alloeocranum biannulipes mont and sign hemiptera reduviidae against dinoderus porcellus lesne coleoptera bostrichidae infesting yam chips version 2 peer review 2 approved 1 approved with reservations |
| topic | Yam beetle Dioscorea spp. Bioactivity Farm storage Integrated pest management eng |
| url | https://openresearchafrica.org/articles/7-7/v2 |
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