Ground-covers affect the activity density of ground-dwelling predators and their impact on the Mediterranean fruit fly, Ceratitis capitata

Cruz-Miralles, Joaquín; Guzzo, Michela; Ibáñez-Gual, M.V.; Dembilio, Óscar; Miret, Josep Anton Jaques

doi:10.1007/s10526-022-10168-0

Cited by 5 publications

(4 citation statements)

References 37 publications

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“… the lack of species‐specific lures for this midge, which hampers: the effective detection/monitoring of adults of R. citrifrugis , as well as the use of other effective measures available against other citrus dipteran pests (i.e. tephritid fruit flies) like mass trapping or lure and kill (Cruz‐Miralles et al., 2022 ; He et al., 2023 ). …”

Section: Data and Methodologiesmentioning

confidence: 99%

“…beetles, earwigs, spiders, ants), which are common in citrus orchards. Their activity and abundance can be enhanced by proper management of the ground cover (Cruz‐Miralles et al., 2022 ). Moreover, soil treatments with entomopathogenic fungi and nematodes, which have been successfully used against soil‐dwelling stages of other pests, including fruit flies (Yousef et al., 2018 ) could be effective also against R. citrifrugis .…”

Section: Data and Methodologiesmentioning

confidence: 99%

“…small sample size) of the experiments on the efficacy of different RROs against R. citrifrugis available from China, which make the results of these experiments inconclusive (see some examples below). the lack of species‐specific lures for this midge, which hampers: the effective detection/monitoring of adults of R. citrifrugis , as well as the use of other effective measures available against other citrus dipteran pests (i.e. tephritid fruit flies) like mass trapping or lure and kill (Cruz‐Miralles et al., 2022; He et al., 2023). …”

Section: Data and Methodologiesmentioning

confidence: 99%

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Risk assessment of Resseliella citrifrugis for the EU

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2023

EFS2

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Following a request from the European Commission, the EFSA Panel on Plant Health performed a risk assessment of the citrus fruit midge Resseliella citrifrugis (Diptera: Cecidomyiidae), an oligophagous species, which feeds on fruits of Citrus spp., and is reported from China. The pest was temporarily regulated in October 2022 (Regulation (EU) /1941 , under Art. 30 (2016 /2031). The entry risk assessment focused on the citrus fruit pathway. Three scenarios were considered: A0 (current practice, i.e. regulated pest for the EU), A1 (deregulation) and A2 (A0 with additional stand-alone post-harvest cold treatment). Based on the outputs of the entry model, under scenario A0, slightly less than 40 potential founder populations per year are expected (median; 90%-uncertainty interval between about one per 30 years and about 3,000 per year). Under scenario A1, the risk of entry increases by about three times and reaches about 120 potential founder populations per year (median; 90%-uncertainty interval between about one per 10 years and about 9,000 per year). Compared to scenario A0, the risk of entry is orders of magnitude lower for scenario A2 (median = about one potential founder population per 120 years; 90%-uncertainty interval between one per about 600 million years and about two per year). The main uncertainties in the entry assessment are the probability of transfer, the RRO effectiveness (for scenario A2) and the disaggregation of consignments (transport of citrus fruit in boxes or lots to different locations). For all scenarios, the number of established populations is only slightly lower than the number of potential founder populations. Establishment is thus not expected to be a major constraint for this pest to then spread and cause impacts, despite the uncertainty about the pest thermal requirements. The median lag period between establishment and spread is estimated to be about 18 months (90%-uncertainty interval between about 7 and 54 months). After the lag period, the median rate of spread by flying and due to transport of harvested citrus fruit from orchards to packinghouses is estimated at about 100 km/year (90%-range between about 40 and 500 km/year). The main uncertainties in the spread assessment include the level of susceptibility of cultivars of different citrus species in the EU, the spread rate in China and the climate suitability of the initial spread focus in the EU. The median impact of R. citrifrugis in the EU citrus-growing area (proportion of infested citrus fruit out of harvested citrus fruit) is estimated at about 10% (90%-uncertainty interval between about 2% and 25%). Uncertainties affecting the impact assessment include the susceptibility of different citrus cultivars and the effect of the citrus fruit-harvesting season in the EU (mainly winter, the less suitable season for the pest).

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Section: Data and Methodologiesmentioning

confidence: 99%

Section: Data and Methodologiesmentioning

confidence: 99%

Section: Data and Methodologiesmentioning

confidence: 99%

See 1 more Smart Citation

Risk assessment of Resseliella citrifrugis for the EU

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2023

EFS2

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“…Wind breaks or hedgerows of Nerium oleander L. (Apocynaceae) serve as a reservoir for aphid natural enemies [26]; conservation of weeds such as Oxalis pes-caprae L. (Oxalidaceae) provides non-pest spider mites as alternative prey for phytoseiid mites [27]; sown cover of Festuca arundinacea Schreb. (Poaceae) regulates populations of Tetranychus urticae Koch (Tetranychidae) [28][29][30][31]; and enhances ground-dwelling predators of C. capitata [32].…”

Section: Introductionmentioning

confidence: 99%

Potential of Hedgerows with Aromatic Plants as Reservoirs of Natural Enemies of Pests in Orange Orchards

Stathakis

Economou

Barda

et al. 2023

Insects

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In the present study, the potential of hedgerows from Mediterranean aromatic plant species, i.e., oregano, rosemary, sage, and savory, in orange field margins to function as reservoirs of natural enemies of citrus pests was tested in comparison to the common management practice of bare soil or weed vegetation. Assessments were based on the abundance and diversity of parasitoid wasps, spiders, and insect predators in the field margins and on the orange trees for two growing seasons. Savory plants harbored more parasitoids compared to weed vegetation and the other aromatic plants (savory > organic rosemary > sage > oregano). Weed vegetation hosted more arachnid predators than the aromatic plants in their first year in the orchard, but this was reversed with their full growth in the following year (most abundant on rosemary). Oregano and sage favor insect predators. The similarity of the natural enemy communities on the field margins and on the orange trees increased with time, indicating the insects’ movement from the field margins to the trees. The results support the use of the tested aromatic plant species in conservation practices for targeted groups of beneficial arthropods in orange orchards, also considering the exploitation of suitable wild flowering plants of the weed flora.

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Compatibility of soil application of Metarhizium brunneum and cover crops against Ceratitis capitata soil-dwelling stages

Cruz-Miralles,

Garrido-Jurado,

Yousef-Yousef

et al. 2024

J Pest Sci

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Fruit fly ground-dwelling stages (late third instar larvae, pupae, and teneral adults) are susceptible to predation from generalist ground-dwelling predators and to infection by entomopathogenic fungi (EPF). The effect of predators can be enhanced with cover crops and that of EPF by augmentative releases. However, whether these two biological control methods could be combined has not been studied under field conditions yet. Here, we studied in the field whether the enhanced activity of predators against the medfly, Ceratitis capitata, already observed in a Lolium arundinaceum ground cover could be impaired by a soil application of Metarhizium brunneum. Our results show that C. capitata adult emergence was reduced by this EPF for up to three months after fungal application, with the combination of the cover and M. brunneum being the most effective at reducing C. capitata emergence relative to bare soil (92.5% reduction). Although M. brunneum reduced the activity density of ground-dwelling predatory beetles up to 93 days after application, it showed no clear negative effects on earwigs, no effects on spiders, and a positive effect on ants up to 65 days after application. Therefore, the combined use of a ground cover of L. arundinaceum and M. brunneum against the soil-dwelling stages of C. capitata seems to work synergistically and appears as a strong and sustainable control tactic against the medfly and other fruit orchard pests.

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Ground-covers affect the activity density of ground-dwelling predators and their impact on the Mediterranean fruit fly, Ceratitis capitata

Cited by 5 publications

References 37 publications

Risk assessment of Resseliella citrifrugis for the EU

Risk assessment of Resseliella citrifrugis for the EU

Potential of Hedgerows with Aromatic Plants as Reservoirs of Natural Enemies of Pests in Orange Orchards

Compatibility of soil application of Metarhizium brunneum and cover crops against Ceratitis capitata soil-dwelling stages

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