Bayesian inferences of arthropod movements between hedgerows and orchards

Lefebvre, Manon; Papaïx, Julien; Mollot, Grégory; Deschodt, Pauline; Lavigne, Claire; Ricard, Jean-Michel; Mandrin, Jean-François; Franck, Pierre

doi:10.1016/j.baae.2017.05.002

Cited by 17 publications

(14 citation statements)

References 37 publications

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“…A high correlation in species composition between hedgerows and orchards supports the migration of syrphids [89,90], but their high mobility makes finding a gradient difficult. ‘Canopy insects’, including the green lacewing Chrysoperla sp., in contrast had a preference for the orchard and frequently moved from the hedgerow to the orchard [91]. Spatial aspects of hedgerow orchard dynamics are further linked to wind exposure, with higher psyllid [81] or codling moth larvae [88] densities in parts of the orchard not protected by or further away from the hedgerow.…”

Section: Resultsmentioning

confidence: 99%

“…Spatial aspects of hedgerow orchard dynamics are further linked to wind exposure, with higher psyllid [81] or codling moth larvae [88] densities in parts of the orchard not protected by or further away from the hedgerow. Frequent movements between the orchard and the adjacent hedgerow were recorded for a diverse range of predator taxa ( F. auricularia , Chrysoperla sp., Philodromus spp., Cheiracanthium mildei L. Koch, and Nebria brevicollis (Fabricius)) in Southern France [91]. Regarding hedgerow quality, diversified perennial plants in hedgerows increased the probability of the ‘canopy insects’ like the ground beetle N. brevicollis and spiders staying within the orchard and of Philodromus spp.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Managing Floral Resources in Apple Orchards for Pest Control: Ideas, Experiences and Future Directions

Herz

Cahenzli

Penvern

et al. 2019

Insects

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Functional biodiversity is of fundamental importance for pest control. Many natural enemies rely on floral resources to complete their life cycle. Farmers need to ensure the availability of suitable and sufficient floral biodiversity. This review summarizes 66 studies on the management of floral biodiversity in apple orchards, published since 1986. Approaches followed different degrees of intervention: short-term practices (mowing regime and weed maintenance, cover crops), establishment of durable ecological infrastructures (perennial flower strips, hedgerows) and re-design of the crop system (intercropping, agroforestry). Although short-term practices did not always target the nutrition of natural enemies by flowering plants, living conditions for them (alternative prey, provision of habitat) were often improved. Perennial flower strips reliably enhanced natural enemies and techniques for their introduction continuously developed. Resident natural enemies and their impact in pest control reacted positively to the introduction of a more diversified vegetation, whereas the response of very mobile organisms was often not directly linked to the measures taken. A careful selection and management of plants with particular traits exploitable by most natural enemies emerged as a key-point for success. Now the elaborated design of such measures needs to be adopted by stakeholders and policy makers to encourage farmers to implement these measures in their orchards.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Managing Floral Resources in Apple Orchards for Pest Control: Ideas, Experiences and Future Directions

Herz

Cahenzli

Penvern

et al. 2019

Insects

View full text Add to dashboard Cite

show abstract

“…For instance, Carrière et al (2006) measured the spatial extent of the source and sink effects of different crops in Arizona cotton landscapes using global positioning system and geographic information system technologies, and were able to provide quantitative advises on crop spatial arrangement at a landscape scale, to improve the management of L. hesperus mirid pest populations. Other more direct methodologies, such as capture-markrecapture or immuno-marking (Lefebvre et al, 2017) could be used in combination with stable isotope analysis to measure arthropod pest dispersal capacities in specific agricultural landscapes.…”

Section: Discussionmentioning

confidence: 99%

Maize fields are a potential sink for an outbreaking mirid bug pest in Chinese Bt-cotton agricultural landscapes

Jiao

Jaworski

et al. 2019

Agriculture, Ecosystems & Environment

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Agricultural landscapes are fast-changing systems due to crop planting and harvesting. These events strongly influence movements of arthropod pests and their natural enemies, yet they are insufficiently considered to implement informed pest management strategies. In China, the adoption of Bt-cotton crops at very large scales has given rise to the recent pest status of mirid bugs such as Apolygus lucorum in cotton fields. In this study we relied on carbon 13 stable isotope analysis to estimate the dispersal of A. lucorum in the Bt-cotton agricultural landscape, composed of a mosaic of cotton and maize and other minor crops. We showed that a diet on C 3-plants including cotton induced a significantly different signature than the C 4-plant maize. Based on δ 13 C ratios, we showed that more than 75% of mirid bugs caught in maize fields did not originate in situ, since they had a C 3-diet and therefore most likely dispersed from neighbouring cotton fields. Conversely, less than 10% of mirid bugs in cotton fields had a diet on C 4-plants, so the vast majority of them did not disperse from maize fields but instead likely stayed in cotton fields. We also observed a delayed establishment of A. lucorum populations in maize fields compared to cotton fields, likely due to host phenology. Indeed we showed in laboratory that juveniles' survival rate and adults' fecundity are high on maize silk and grain only, whose resources are available in the field shortly before harvest. Unidirectional movements of mirids from cotton to maize associated with poor developmental success on maize highlight the high potential of maize fields to act as a sink for A. lucorum mirid bug pests. This could be wisely implemented in IPM programs to enhance the management of mirid bug population outbreaks in cotton fields and reduce yield loss on cotton.

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“…birds and crawling arthropods, which has been shown elsewhere. For example, bird abundance and richness increase with apple tree canopy cover and with the availability of seminatural woody habitats (García et al 2018) and the diversity of crawling predators like spiders, ants, earwigs and predatory beetles is also influenced by landscape features (Lefebvre et al 2016(Lefebvre et al , 2017 as well as by local management strategies (Miñarro et al 2009;Marliac et al 2016).…”

Section: What Are the Determinants Of Weevil Infestation And Biologicmentioning

confidence: 99%

Unravelling pest infestation and biological control in low-input orchards: the case of apple blossom weevil

Miñarro

García

2018

J Pest Sci

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Low input farming is an alternative production system that provides a great opportunity to disentangle the natural mechanisms regulating crop pests, since neither pests nor their natural enemies are disrupted by pesticides. Here we use a key apple pest in Europe, the apple blossom weevil (Anthonomus pomorum), as a model case to unravel the factors driving pest infestation and its biological control in a low input context, namely the cider apple orchards of NW Spain. We applied a holistic approach based on the complete life-cycle of the pest, and combined large-scale observation (23 orchards) with small-scale experimental assessment. Weevil attack (0.4-37.4% of flowers) increased with the proportion on apple trees in the immediate orchard neighbourhood, and with semi-natural woody habitat in the surrounding landscape, and decreased with tree distance to orchard edge and apple bloom level. Thus the prevalence of the pest depended on the availability of the various resources required for foraging, egg-lying and overwintering. Three types of natural enemies supplied complementary pest control by preying on weevils at different stages in their lifecycle: seven parasitoid species attacked immature weevils (6.4-81.5%) while the additive effects of birds and crawling arthropods were evident in terms of the removal of adult weevils (31-44%). We conclude that the effective biological control of A. pomorum can be achieved in low input systems to maintain the pest at non-harmful levels, through combined management of the pest, its habitat and its natural enemies.

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Bayesian inferences of arthropod movements between hedgerows and orchards

Cited by 17 publications

References 37 publications

Managing Floral Resources in Apple Orchards for Pest Control: Ideas, Experiences and Future Directions

Managing Floral Resources in Apple Orchards for Pest Control: Ideas, Experiences and Future Directions

Maize fields are a potential sink for an outbreaking mirid bug pest in Chinese Bt-cotton agricultural landscapes

Unravelling pest infestation and biological control in low-input orchards: the case of apple blossom weevil

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