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Effect of Cry toxins on Xylotrechus arvicola (Coleoptera:Cerambycidae) larvae

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Effect of Cry toxins on Xylotrechus arvicola (Coleoptera:Cerambycidae) larvae

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dc.contributor.author Rodríguez González, Álvaro
dc.contributor.author Porteous Álvarez, Alejandra Juana
dc.contributor.author Guerra Sánchez, Marcos
dc.contributor.author González López, Óscar
dc.contributor.author Casquero Luelmo, Pedro Antonio
dc.contributor.author Escriche Soler, Baltasar
dc.date.accessioned 2023-05-17T16:56:19Z
dc.date.available 2023-05-17T16:56:19Z
dc.date.issued 2022
dc.identifier.citation Rodríguez González, Álvaro Porteous Álvarez, Alejandra Juana Guerra Sánchez, Marcos González López, Óscar Casquero Luelmo, Pedro Antonio Escriche Soler, Baltasar 2022 Effect of Cry toxins on Xylotrechus arvicola (Coleoptera:Cerambycidae) larvae Insects 13 1 27
dc.identifier.uri https://hdl.handle.net/10550/86689
dc.description.abstract The beetle Xylotrechus arvicola is a destructive pest in vineyards (Vitis vinifera) in the main wine-producing areas of the Iberian Peninsula. X. arvicola larvae bore into the grapevine woodmaking galleries, thus damaging the plant both directly and indirectly; the latter through the proliferation of wood fungi, which can invade the inside of the plant, decreasing the quality and quantity of its production. The susceptibility of X. arvicola larvae to five coleopteran toxic Cry proteins (Cry1B, Cry1I, Cry3A, Cry7A, and Cry23/37) was evaluated under laboratory conditions in order to deepen the knowledge of the effect of these proteins on this insect throughout its biological development. Cry7Ab and Cry1Ba were the most effective in controlling X. arvicola larvae due to the significant reduction in larvae survival (32.9 and 25.9 days, respectively), and by causing serious alterations in the larvae during the remaining months of their development. The developmental stage of the prepupal and pupal stages was not affected by the previous ingestion of Cry proteins. The Cry proteins tested could be applied to control X. arvicola larvae since they were able to kill them and cause serious alterations in the larvae during the remaining months of development that followed. The data presented suggest that these Cry proteins can be used as bioinsecticides against the larvae of this insect, applying them only at the moment when the larvae hatch from the egg outside the grapevine wood (this would only be useful and justified if the economic threshold is exceeded) in order to avoid the rapid evolution of resistance against these toxins since not all of the larvae were killed and thus increase vine wood protection.
dc.language.iso eng
dc.relation.ispartof Insects, 2022, vol. 13, num. 1, p. 27
dc.subject Plagues Control
dc.title Effect of Cry toxins on Xylotrechus arvicola (Coleoptera:Cerambycidae) larvae
dc.type journal article
dc.date.updated 2023-05-17T16:56:19Z
dc.identifier.doi 10.3390/insects13010027
dc.identifier.idgrec 150987
dc.rights.accessRights open access

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