Later summer oviposition of green lacewing (Neuroptera: Chrysopidae) on trees adjacent to olive groves
The Chrysopidae family has an important role in olive crops as a generalist predator, because of this, it is frequently used in agriculture and considered as an important biological control agent. Biological control by conservation using landscape management, have been pointed as an important tool i...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión enviada para evaluación y publicación |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/189583 |
| Acceso en línea: | http://hdl.handle.net/10261/189583 |
| Access Level: | acceso abierto |
| Palabra clave: | Biological control by conservation Ecological infrastructures Natural vegetation |
| Sumario: | The Chrysopidae family has an important role in olive crops as a generalist predator, because of this, it is frequently used in agriculture and considered as an important biological control agent. Biological control by conservation using landscape management, have been pointed as an important tool in order to protect the crops, enhancing the populations of natural enemies to control the pests. This work attempts to assess the ecological role of the three most frequent native tree species (almonds, oaks and pines) adjacent to the olive crops in Andalusia, in order to know their use by chrysopid species for oviposition. Clutches of chrysopids were sampled from tree canopies by direct observation and collected in August of 2016 and 2017. Additionally, we checked the type and the position of every clutches and the samples collected in 2016 were monitored in the laboratory to observe their evolution and finally identified. No differences in abundance of the clutches were observed among different farms and tree species, suggesting that chrysopids are geographically well spread and that all of the tree species are equally suitable to support clutches of chrysopids. Additionally, chrysopids preferred to lay their clutches on the edge and upper side of the leaves and the single clutches was the most frequent mode of oviposition. Analysing the adults emerged from the clutches and raised up in the laboratory, ten chrysopid species belonging to four genera were detected over the studied trees, and almond was the tree that sheltered the highest diversity. Chrysopid species showed a different selectivity over the substrate tree, thus we found species choosing only one tree to lay (Cunctochrysa n.sp. laid only over oaks, C. pallida and C. lucasina only over almond) but others were able of laid clutches over all the studied trees, as P. prasinus. |
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