MosChito rafts as effective and eco-friendly tool for the delivery of a Bacillus thuringiensis-based insecticide to Aedes albopictus larvae
Abstract Adult mosquito females, through their bites, are responsible for the transmission of different zoonotic pathogens. Although adult control represents a pillar for the prevention of disease spread, larval control is also crucial. Herein we characterized the effectiveness of a suitable tool, n...
| Main Authors: | , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-02-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-29501-3 |
| _version_ | 1827984381138960384 |
|---|---|
| author | Simone Pitton Agata Negri Giulia Pezzali Marco Piazzoni Silvia Locarno Paolo Gabrieli Roberto Quadri Valentina Mastrantonio Sandra Urbanelli Daniele Porretta Claudio Bandi Sara Epis Silvia Caccia |
| author_facet | Simone Pitton Agata Negri Giulia Pezzali Marco Piazzoni Silvia Locarno Paolo Gabrieli Roberto Quadri Valentina Mastrantonio Sandra Urbanelli Daniele Porretta Claudio Bandi Sara Epis Silvia Caccia |
| author_sort | Simone Pitton |
| collection | DOAJ |
| description | Abstract Adult mosquito females, through their bites, are responsible for the transmission of different zoonotic pathogens. Although adult control represents a pillar for the prevention of disease spread, larval control is also crucial. Herein we characterized the effectiveness of a suitable tool, named “MosChito raft”, for the aquatic delivery of a Bacillus thuringiensis var. israelensis (Bti) formulate, a bioinsecticide active by ingestion against mosquito larvae. MosChito raft is a floating tool composed by chitosan cross-linked with genipin in which a Bti-based formulate and an attractant have been included. MosChito rafts (i) resulted attractive for the larvae of the Asian tiger mosquito Aedes albopictus, (ii) induced larval mortality within a few hours of exposure and, more importantly, (iii) protected the Bti-based formulate, whose insecticidal activity was maintained for more than one month in comparison to the few days residual activity of the commercial product. The delivery method was effective in both laboratory and semi-field conditions, demonstrating that MosChito rafts may represent an original, eco-based and user-friendly solution for larval control in domestic and peri-domestic aquatic habitats such as saucers and artificial containers in residential or urban environments. |
| first_indexed | 2024-04-09T22:59:21Z |
| format | Article |
| id | doaj.art-4c2fe4e2a6234f5692cd124c92dfb680 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-09T22:59:21Z |
| publishDate | 2023-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-4c2fe4e2a6234f5692cd124c92dfb6802023-03-22T11:04:21ZengNature PortfolioScientific Reports2045-23222023-02-0113111010.1038/s41598-023-29501-3MosChito rafts as effective and eco-friendly tool for the delivery of a Bacillus thuringiensis-based insecticide to Aedes albopictus larvaeSimone Pitton0Agata Negri1Giulia Pezzali2Marco Piazzoni3Silvia Locarno4Paolo Gabrieli5Roberto Quadri6Valentina Mastrantonio7Sandra Urbanelli8Daniele Porretta9Claudio Bandi10Sara Epis11Silvia Caccia12Department of Biosciences, University of MilanDepartment of Biosciences, University of MilanDepartment of Biosciences, University of MilanCIMAINA, Department of Physics, University of MilanFondazione UNIMIDepartment of Biosciences, University of MilanDepartment of Biosciences, University of MilanDepartment of Environmental Biology, Sapienza University of RomeDepartment of Environmental Biology, Sapienza University of RomeDepartment of Environmental Biology, Sapienza University of RomeDepartment of Biosciences, University of MilanDepartment of Biosciences, University of MilanDepartment of Biosciences, University of MilanAbstract Adult mosquito females, through their bites, are responsible for the transmission of different zoonotic pathogens. Although adult control represents a pillar for the prevention of disease spread, larval control is also crucial. Herein we characterized the effectiveness of a suitable tool, named “MosChito raft”, for the aquatic delivery of a Bacillus thuringiensis var. israelensis (Bti) formulate, a bioinsecticide active by ingestion against mosquito larvae. MosChito raft is a floating tool composed by chitosan cross-linked with genipin in which a Bti-based formulate and an attractant have been included. MosChito rafts (i) resulted attractive for the larvae of the Asian tiger mosquito Aedes albopictus, (ii) induced larval mortality within a few hours of exposure and, more importantly, (iii) protected the Bti-based formulate, whose insecticidal activity was maintained for more than one month in comparison to the few days residual activity of the commercial product. The delivery method was effective in both laboratory and semi-field conditions, demonstrating that MosChito rafts may represent an original, eco-based and user-friendly solution for larval control in domestic and peri-domestic aquatic habitats such as saucers and artificial containers in residential or urban environments.https://doi.org/10.1038/s41598-023-29501-3 |
| spellingShingle | Simone Pitton Agata Negri Giulia Pezzali Marco Piazzoni Silvia Locarno Paolo Gabrieli Roberto Quadri Valentina Mastrantonio Sandra Urbanelli Daniele Porretta Claudio Bandi Sara Epis Silvia Caccia MosChito rafts as effective and eco-friendly tool for the delivery of a Bacillus thuringiensis-based insecticide to Aedes albopictus larvae Scientific Reports |
| title | MosChito rafts as effective and eco-friendly tool for the delivery of a Bacillus thuringiensis-based insecticide to Aedes albopictus larvae |
| title_full | MosChito rafts as effective and eco-friendly tool for the delivery of a Bacillus thuringiensis-based insecticide to Aedes albopictus larvae |
| title_fullStr | MosChito rafts as effective and eco-friendly tool for the delivery of a Bacillus thuringiensis-based insecticide to Aedes albopictus larvae |
| title_full_unstemmed | MosChito rafts as effective and eco-friendly tool for the delivery of a Bacillus thuringiensis-based insecticide to Aedes albopictus larvae |
| title_short | MosChito rafts as effective and eco-friendly tool for the delivery of a Bacillus thuringiensis-based insecticide to Aedes albopictus larvae |
| title_sort | moschito rafts as effective and eco friendly tool for the delivery of a bacillus thuringiensis based insecticide to aedes albopictus larvae |
| url | https://doi.org/10.1038/s41598-023-29501-3 |
| work_keys_str_mv | AT simonepitton moschitoraftsaseffectiveandecofriendlytoolforthedeliveryofabacillusthuringiensisbasedinsecticidetoaedesalbopictuslarvae AT agatanegri moschitoraftsaseffectiveandecofriendlytoolforthedeliveryofabacillusthuringiensisbasedinsecticidetoaedesalbopictuslarvae AT giuliapezzali moschitoraftsaseffectiveandecofriendlytoolforthedeliveryofabacillusthuringiensisbasedinsecticidetoaedesalbopictuslarvae AT marcopiazzoni moschitoraftsaseffectiveandecofriendlytoolforthedeliveryofabacillusthuringiensisbasedinsecticidetoaedesalbopictuslarvae AT silvialocarno moschitoraftsaseffectiveandecofriendlytoolforthedeliveryofabacillusthuringiensisbasedinsecticidetoaedesalbopictuslarvae AT paologabrieli moschitoraftsaseffectiveandecofriendlytoolforthedeliveryofabacillusthuringiensisbasedinsecticidetoaedesalbopictuslarvae AT robertoquadri moschitoraftsaseffectiveandecofriendlytoolforthedeliveryofabacillusthuringiensisbasedinsecticidetoaedesalbopictuslarvae AT valentinamastrantonio moschitoraftsaseffectiveandecofriendlytoolforthedeliveryofabacillusthuringiensisbasedinsecticidetoaedesalbopictuslarvae AT sandraurbanelli moschitoraftsaseffectiveandecofriendlytoolforthedeliveryofabacillusthuringiensisbasedinsecticidetoaedesalbopictuslarvae AT danieleporretta moschitoraftsaseffectiveandecofriendlytoolforthedeliveryofabacillusthuringiensisbasedinsecticidetoaedesalbopictuslarvae AT claudiobandi moschitoraftsaseffectiveandecofriendlytoolforthedeliveryofabacillusthuringiensisbasedinsecticidetoaedesalbopictuslarvae AT saraepis moschitoraftsaseffectiveandecofriendlytoolforthedeliveryofabacillusthuringiensisbasedinsecticidetoaedesalbopictuslarvae AT silviacaccia moschitoraftsaseffectiveandecofriendlytoolforthedeliveryofabacillusthuringiensisbasedinsecticidetoaedesalbopictuslarvae |