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DIGITAL.CSIC
Article . 2020
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Influence of surroundings natural habitats in the olive pest Prays oleae Influencia de los hábitats naturales adyacentes en la plaga del olivo Prays oleae

Authors: Plata, A.; Moreno-Chocano, Joaquín; Manjón-Cabezas, J.; Campos, Mercedes; Paredes, Daniel;

Influence of surroundings natural habitats in the olive pest Prays oleae Influencia de los hábitats naturales adyacentes en la plaga del olivo Prays oleae

Abstract

Recent research highlights the predator Anthocoris nemoralis as an effective biocontrol agent against an important olive pest, Prays oleae. This work tries to corroborate that an increase of natural habitats proportion surrounding the crop, together with a high abundance of the secondary pest Euphyllura olivina, could increase the population of A. nemoralis, and as a consequence, if a higher abundance of this predator would improve the biological control of P. oleae. For this purpose, the community of arthropods present in nine farms with different landscape composition was sampled during four key phenological stages of olive tree. Statistical models were used to evaluate the relationship between pairs of species and the proportion of natural habitats at different distances. During flowering season, a positive effect between proportion of adjacent natural habitats and the abundance of A. nemoralis and E. olivina on the olive tree crown was observed, as well as a positive relationship between the abundance of both species. During fruit development, higher abundances of A. nemoralis were associated with lower abundances of P. oleae. Assessed hypothesis are reinforced, surface of natural habitats surroundings olive groves and presence of the secondary pest E. olivina have a positive effect on the abundance of the polyphagous predator A. nemoralis, and this can contribute to the control of the pest P. oleae.

Recientes investigaciones destacan al depredador Anthocoris nemoralis como un agente efectivo contra una importante plaga del olivar, Prays oleae. Este trabajo intenta corroborar que un incremento de la proporción de hábitats naturales cercanos al cultivo, unido a una alta abundancia de la plaga secundaria Euphyllura olivina, podría aumentar las poblaciones de A. nemoralis, y como consecuencia, si una mayor abundancia de este depredador mejoraría el control biológico de P. oleae. Para ello se muestreó la comunidad de artrópodos presente en nueve fincas con diferente composición paisajística durante cuatro momentos fenológicos clave del olivo, evaluando posteriormente, a través de modelos estadísticos, la relación entre los pares de especies y la proporción de hábitats naturales a diferentes distancias. En la época de floración se observó un efecto positivo entre la proporción de hábitats naturales adyacentes y la abundancia de A. nemoralis y E. olivina en la copa del olivo, así como una relación positiva entre la abundancia de ambas especies. Durante el desarrollo del fruto, mayores abundancias de A. nemoralis se asociaron a menores abundancias de P. oleae. Se refuerza la hipótesis de que tanto la superficie de hábitats naturales adyacentes al olivar como la presencia de la plaga secundaria E. olivina

Country
Spain
Related Organizations
Keywords

Control biológico, Anthocoris nemoralis, Euphyllura olivina, Prays oleae, Manejo del hábitat

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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