Landscape composition and configuration affect the abundance of the olive moth (Prays oleae, Bernard) in olive groves

Villa, María; Santos, Sónia A.P.; Sousa, José Paulo; Ferreira, Ana S.; Silva, Pedro Martins da; Patanita, Maria Isabel; Ortega, M.; Pascual, Susana; Pereira, José Alberto

doi:10.1016/j.agee.2020.106854

Cited by 26 publications

(21 citation statements)

References 35 publications

(50 reference statements)

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“…Thus, more diverse landscapes may facilitate better pest control [8,51,52]. In the same line, Villa et al, (2020) [53] related the landscape diversity and configuration at larger scales with a decrease of P. oleae abundance. Some authors have suggested that natural or semi-natural habitats at the landscape scale are important elements that favor the prospection of natural enemies of olive pests by providing undisturbed areas that offer shelter from crop disturbances as well as overwintering refuges, alternative hosts, and prey, and additional food resources [7,19,54].…”

Section: Discussionmentioning

confidence: 87%

Land-Use Effect on Olive Groves Pest Prays oleae and on Its Potential Biocontrol Agent Chrysoperla carnea

Alves

Mendes

Silva

et al. 2021

Insects

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Olive growing has been intensified through the simplification of agricultural landscapes. In order to rethink the environmental drawbacks of these practices, conservation biological control techniques have been examined. In this work, Prays oleae and its natural enemy Chrysoperla carnea were monitored to account for the effects of the amount and diversity of different land-uses. We found that C. carnea showed an attraction to areas with high abundances of P. oleae but this predator did not display any affection by the different land-uses. Inversely, P. oleae abundance was lower in diverse landscapes and higher in simplified ones. Importantly, higher abundances of C. carnea were related to lower infestation levels of P. oleae in the late part of the season. These results corroborate the attraction of C. carnea to the olive moth, highlighting the potential of C. carnea as a biological control agent of this pest, assert that the promotion of land-use diversity can reduce P. oleae and confirm that landscapes dominated by olive groves can promote this pest. The present study aims at contributing to the discussion about the management of agricultural ecosystems by providing farmers with sustainable alternatives that do not have harmful effects on the environment and public health.

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Section: Discussionmentioning

confidence: 87%

Land-Use Effect on Olive Groves Pest Prays oleae and on Its Potential Biocontrol Agent Chrysoperla carnea

Alves

Mendes

Silva

et al. 2021

Insects

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“…This was reflected in the composition and abundance of families of natural enemies. Both local and largescale factors can affect the abundance of natural enemies and pests in olive orchards, such as less pesticide application or microclimate conditions and landscape diversity or patch size, respectively (Boccaccio and Petacchi, 2009;Rodríguez et al, 2009;Ortega and Pascual, 2014;Villa et al, 2016a;2020;Morente et al, 2018;Álvarez et al, 2019a). This may explain why the structure of the arthropod community tended not to differ in our study.…”

Section: Discussionmentioning

confidence: 99%

Ground cover presence in organic olive orchards affects the interaction of natural enemies againstPrays oleae, promoting an effective egg predation

Álvarez¹,

Jiménez-Muñoz²,

Morente³

et al. 2021

Preprint

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The olive moth, Prays oleae, is one of the most common insects that damages olives in the circum-Mediterranean region. The establishment of ground cover within olive orchards has been promoted in this region in recent years to avoid erosion and soil degradation. Nevertheless, its role as a shelter for natural enemies of pests has been controversial. In this study we have investigated the effectiveness of the biological control of P. oleae in organic olive orchards with ground cover (mowed) and without ground cover (tilled). For this (1) we assessed the relationship between predated eggs and the abundance of natural enemies in both types of orchards; (2) we compared both the potential damage of the pest and the egg hatching in the two types of orchards; and (3) we examined the interaction amongst families of natural enemies and P. oleae (as adults and as predated eggs). The results showed that there is a high rate of predation in the studied olive orchards, 81% of the eggs were predated, 12.2% hatched, and 6.9% were live eggs. However, mowed orchards were more effective for controlling P. oleae by means of egg predation rather than tilled orchards, i.e., in mowed orchards, whilst the potential damage of the pest was higher, egg hatching was rather low. The structure of the adult arthropod community, i.e., the composition and abundance of families of natural enemies did not differ between the orchards, but the abundance of the families Anthocoridae, Miridae and Scelionidae was significantly higher in the mowed orchards. Finally, the interaction amongst natural enemies and P. oleae showed that the families that better explained the effects on egg predation were Aeolothripidae, Anthocoridae, Miridae, Chrysopidae (predators), and Formicidae (omnivore). We discuss the results in terms of ecological interactions of trophic guilds and we conclude that the establishment and maintenance of ground cover in organic olive orchards, at least in June and July, is of great significance because it positively affects the egg predation of P. oleae. This effect is especially significant when there is a low abundance of natural enemies in the olive orchards.

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“…Our previous work in the Jaén province also found signi cant effects of landscape structure on B. oleae abundance at radii ranging between 500 and 2000 m, depending on the index studied (Ortega and Pascual, 2014;Ortega et al, 2016). Other studies in olive groves used radii ranging from 200 to 2000m (Boccaccio and Petacchi 2009;Gkisakis et al 2018;Picchi et al 2016;Villa et al 2020). In some of this work, one radius is selected because there is previous knowledge on the phenomenon studied (Picchi et al 2016).…”

Section: Effect Of Landscape Structure On Spring B Oleae Populationmentioning

confidence: 90%

“…Otherwise, multiple scales are examined, as it is not known a priori which are important, and these are chosen based mainly on the dispersal abilities of the studied organisms. However, signi cant effects have been found in different studies at 1000 m radius (Boccaccio and Petacchi 2009;Ortega and Pascual 2014;Ortega et al 2016;Villa et al 2020), and the most predictive scale of response for specialist pests in different crops is around 1000m (Chaplin-Kramer et al 2011).…”

Section: Effect Of Landscape Structure On Spring B Oleae Populationmentioning

confidence: 99%

“…According to the Spanish Ministry of Agriculture, Fisheries and Food, the area occupied by olive groves in the Jaén province is 586,921 ha, while in the Madrid province, where the present study was carried out is 26,585 ha (https://www.mapa.gob.es/es/estadistica/temas/estadisticas-agrarias/agricultura/super ciesproducciones-anuales-cultivos/). The complexity of the landscape surrounding olive groves has also been shown to be related to lower abundance of another important olive pest, the olive moth (Prays oleae, Bernard) (Villa et al 2020). In addition, several other works indicate a favourable effect of landscape complexity on different biocontrol organisms/processes (Boccaccio and Petacchi 2009;Lantero et al 2019;Ortega et al 2018), and general arthropod biodiversity (Cotes et al 2011;Gkisakis et al 2018).…”

Section: Effect Of Landscape Structure On Spring B Oleae Populationmentioning

confidence: 99%

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Olive Landscape Affects Bactrocera Oleae Abundance, Movement and Damage

Ortega

Moreno

Fernández

et al. 2021

Preprint

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The olive fruit fly, Bactrocera oleae (Rossi) (Diptera: Tephritidae), is a key pest of olive groves. Because of its economic importance and problems associated with chemical control, new approaches to reduce the damage caused by this pest and a deeper knowledge of the biology of the insect and the relationship of landscape structure to different biological parameters are needed. B. oleae can fly long distances and its ability to move within the landscape can determine the damage caused to olive groves. This work evaluates the effect of landscape structure on olive fruit fly abundance, movements and damage at three times of year—spring, early autumn and late autumn—in central Spain. This area is less dominated by olive groves than southern Spain, where the relationship between olive grove area and B. oleae abundance is already known. A cost-distance analysis is used to evaluate the landscape effect on the movement of the fly along the crop cycle. The olive grove area is the landscape composition factor with the greatest effect on the parameters studied, with a decrease in B. oleae abundance in a more complex landscape during spring and early autumn. The cost-distance analysis shows that the olive fruit fly moves mainly in spring, and amongst olive groves. There is no evidence that land uses other than olive groves serve as a summer refuge for B.oleae in the studied landscape context. Olive grove area and land use diversity index had significant effects on olive damage in more than one year.

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Landscape composition and configuration affect the abundance of the olive moth (Prays oleae, Bernard) in olive groves

Cited by 26 publications

References 35 publications

Land-Use Effect on Olive Groves Pest Prays oleae and on Its Potential Biocontrol Agent Chrysoperla carnea

Land-Use Effect on Olive Groves Pest Prays oleae and on Its Potential Biocontrol Agent Chrysoperla carnea

Ground cover presence in organic olive orchards affects the interaction of natural enemies againstPrays oleae, promoting an effective egg predation

Olive Landscape Affects Bactrocera Oleae Abundance, Movement and Damage

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