Volatile organic compounds from entomopathogenic and nematophagous fungi repel banana weevil (Cosmopolites sordidus) under banana field conditions
Fungal volatile organic compounds (VOCs) with biological activity produced by entomopathogenic fungi (Beauveria bassiana and Metarhizium robertsii) isolated from banana fields (Canary Islands) and the nematophagous fungus Pochonia chlamydosporia, used in biocontrol of root-knot nematodes, repel the...
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PeerJ Inc.
2025-05-01
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| author | Ana Lozano-Soria Ana Piedra-Buena Diaz Federico Lopez-Moya Miguel Valverde-Urrea Jose J. Zubcoff Jose Emilio Martinez-Perez Javier Lopez-Cepero Luis V. Lopez-Llorca |
| author_facet | Ana Lozano-Soria Ana Piedra-Buena Diaz Federico Lopez-Moya Miguel Valverde-Urrea Jose J. Zubcoff Jose Emilio Martinez-Perez Javier Lopez-Cepero Luis V. Lopez-Llorca |
| author_sort | Ana Lozano-Soria |
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| description | Fungal volatile organic compounds (VOCs) with biological activity produced by entomopathogenic fungi (Beauveria bassiana and Metarhizium robertsii) isolated from banana fields (Canary Islands) and the nematophagous fungus Pochonia chlamydosporia, used in biocontrol of root-knot nematodes, repel the banana weevil (BW), Cosmopolites sordidus (Germar, 1824) under laboratory conditions. BW is the main pest of banana (Musa spp. (Linnaeus, 1753)). Its cryptic behavior makes it difficult to manage. Repellent VOCs alter BW behavior and can thus be used in sustainable pest management strategies. We evaluated fungal VOCs styrene (C1), benzothiazole (C2), 1,3-dimethoxybenzene (C5) and 2-cyclohepten-1-one (C7) in Canary Islands banana fields naturally infested with BW. 1,3-dimethoxybenzene (C5) significantly reduced the attraction of BW adults to sordidin (BW aggregation pheromone) in banana fields. C5 was detected in the field using GC-MS. C1 and C2 had a mild repellent effect influenced by seasonal changes. C7 VOC did not repel BW in the field. Site and season affected VOCs repellence to BW. Climate may influence VOCs evaporation and therefore their repellent efficacy. VOCs modify BW spatial ecology under field conditions. The inverse distance weighted (IDW) interpolation technique showed changes in BW infestation patterns after application of VOCs in the field. In conclusion, VOCs from biocontrol fungi reduced BW attraction to its aggregation pheromone in banana fields. These responses to experimental BW repellents were influenced by weather and BW population size. BW repellents have potential to be used in “push-pull” strategies to manage BW sustainably in banana crops. |
| format | Article |
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| language | English |
| publishDate | 2025-05-01 |
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| spelling | doaj-art-24d830ee24924bce9b0733e3adeb041e2025-08-20T02:00:46ZengPeerJ Inc.PeerJ2167-83592025-05-0113e1941410.7717/peerj.19414Volatile organic compounds from entomopathogenic and nematophagous fungi repel banana weevil (Cosmopolites sordidus) under banana field conditionsAna Lozano-Soria0Ana Piedra-Buena Diaz1Federico Lopez-Moya2Miguel Valverde-Urrea3Jose J. Zubcoff4Jose Emilio Martinez-Perez5Javier Lopez-Cepero6Luis V. Lopez-Llorca7Marine Sciences and Applied Biology, University of Alicante, Alicante, SpainEntomology Area, Plant Protection Department, Canarian Institute for Agronomy Research, Valle de Guerra, San Cristóbal de La Laguna, Tenerife, Canary Islands, SpainMarine Sciences and Applied Biology, University of Alicante, Alicante, SpainMarine Sciences and Applied Biology, University of Alicante, Alicante, SpainMarine Sciences and Applied Biology, University of Alicante, Alicante, SpainNatural Resources Cartography Unit, Department of Ecology, University of Alicante, Alicante, SpainTechnical Department of Coplaca, Coplaca Cooperative, Tenerife, Canary Islands, SpainMarine Sciences and Applied Biology, University of Alicante, Alicante, SpainFungal volatile organic compounds (VOCs) with biological activity produced by entomopathogenic fungi (Beauveria bassiana and Metarhizium robertsii) isolated from banana fields (Canary Islands) and the nematophagous fungus Pochonia chlamydosporia, used in biocontrol of root-knot nematodes, repel the banana weevil (BW), Cosmopolites sordidus (Germar, 1824) under laboratory conditions. BW is the main pest of banana (Musa spp. (Linnaeus, 1753)). Its cryptic behavior makes it difficult to manage. Repellent VOCs alter BW behavior and can thus be used in sustainable pest management strategies. We evaluated fungal VOCs styrene (C1), benzothiazole (C2), 1,3-dimethoxybenzene (C5) and 2-cyclohepten-1-one (C7) in Canary Islands banana fields naturally infested with BW. 1,3-dimethoxybenzene (C5) significantly reduced the attraction of BW adults to sordidin (BW aggregation pheromone) in banana fields. C5 was detected in the field using GC-MS. C1 and C2 had a mild repellent effect influenced by seasonal changes. C7 VOC did not repel BW in the field. Site and season affected VOCs repellence to BW. Climate may influence VOCs evaporation and therefore their repellent efficacy. VOCs modify BW spatial ecology under field conditions. The inverse distance weighted (IDW) interpolation technique showed changes in BW infestation patterns after application of VOCs in the field. In conclusion, VOCs from biocontrol fungi reduced BW attraction to its aggregation pheromone in banana fields. These responses to experimental BW repellents were influenced by weather and BW population size. BW repellents have potential to be used in “push-pull” strategies to manage BW sustainably in banana crops.https://peerj.com/articles/19414.pdfFungal VOCsSemiochemicalsInsect repellentIntegrated pest managementPush and pull |
| spellingShingle | Ana Lozano-Soria Ana Piedra-Buena Diaz Federico Lopez-Moya Miguel Valverde-Urrea Jose J. Zubcoff Jose Emilio Martinez-Perez Javier Lopez-Cepero Luis V. Lopez-Llorca Volatile organic compounds from entomopathogenic and nematophagous fungi repel banana weevil (Cosmopolites sordidus) under banana field conditions PeerJ Fungal VOCs Semiochemicals Insect repellent Integrated pest management Push and pull |
| title | Volatile organic compounds from entomopathogenic and nematophagous fungi repel banana weevil (Cosmopolites sordidus) under banana field conditions |
| title_full | Volatile organic compounds from entomopathogenic and nematophagous fungi repel banana weevil (Cosmopolites sordidus) under banana field conditions |
| title_fullStr | Volatile organic compounds from entomopathogenic and nematophagous fungi repel banana weevil (Cosmopolites sordidus) under banana field conditions |
| title_full_unstemmed | Volatile organic compounds from entomopathogenic and nematophagous fungi repel banana weevil (Cosmopolites sordidus) under banana field conditions |
| title_short | Volatile organic compounds from entomopathogenic and nematophagous fungi repel banana weevil (Cosmopolites sordidus) under banana field conditions |
| title_sort | volatile organic compounds from entomopathogenic and nematophagous fungi repel banana weevil cosmopolites sordidus under banana field conditions |
| topic | Fungal VOCs Semiochemicals Insect repellent Integrated pest management Push and pull |
| url | https://peerj.com/articles/19414.pdf |
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