Moroccan entomopathogenic nematodes as potential biocontrol agents against Dactylopius opuntiae (Hemiptera: Dactylopiidae)

cg.authorship.typesCGIAR and developing country instituteen_US
cg.contributor.affiliationInstitut National de la Recherche Agronomique, Moroccoen_US
cg.contributor.affiliationInternational Maize and Wheat Improvement Centeren_US
cg.contributor.affiliationÉcole Nationale d'Agriculture de Meknèsen_US
cg.contributor.donorCGIAR Trust Funden_US
cg.contributor.initiativeAccelerated Breedingen_US
cg.coverage.countryMoroccoen_US
cg.coverage.iso3166-alpha2MAen_US
cg.coverage.regionAfricaen_US
cg.coverage.regionNorthern Africaen_US
cg.creator.identifierA.A. Dababat: 0000-0002-3172-0452en_US
cg.howPublishedFormally Publisheden_US
cg.identifier.doihttps://doi.org/10.1038/s41598-022-11709-4en_US
cg.isijournalISI Journalen_US
cg.issn2045-2322en_US
cg.issue1en_US
cg.journalScientific Reportsen_US
cg.placeUnited Kingdomen_US
cg.reviewStatusPeer Reviewen_US
cg.subject.actionAreaGenetic Innovationen_US
cg.subject.impactAreaNutrition, health and food securityen_US
cg.volume12en_US
dc.contributor.authorEl Aalaoui, Mohameden_US
dc.contributor.authorMokrini, Fouaden_US
dc.contributor.authorDababat, Abdelfattah A.en_US
dc.contributor.authorLahlali, Rachiden_US
dc.contributor.authorSbaghi, Mohameden_US
dc.date.accessioned2023-02-26T17:35:15Zen_US
dc.date.available2023-02-26T17:35:15Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/129057en_US
dc.titleMoroccan entomopathogenic nematodes as potential biocontrol agents against Dactylopius opuntiae (Hemiptera: Dactylopiidae)en_US
dcterms.abstractDactylopius opuntiae (Cockerell) (Hemiptera: Dactylopiidae) or prickly pear cochineal, is the most damaging pest on cactus species with heavy economic losses worldwide. The efficacy of two Moroccan EPN isolates; Steinernema feltiae (Filipjev) (Rhabditida: Steinernematidae) and Heterorhabditis bacteriophora (Poinar) (Rhabditida: Heterorhabditidae) (applied at 25, 50, and 75 IJs cm−2) against D. opuntiae nymphs and young females were evaluated under both laboratory bioassays and field conditions. Results showed that S. feltiae was more effective, causing higher mortality of nymphs and adult females (98.8% and 97.5%, respectively) after 8 days of exposure, resulting in an LT50 value of 5.9 days (nymph) and 6.0 days (young female). While, H. bacteriophora had lower mortalities (83.8% for nymph and 81.3% for adult females). For the cochineal nymphs and adult females, no significant difference was observed among S. feltiae at 25, 50, and 75 IJs cm−2, and the positive control, D-limonene applied at 0.5 g/L which was used due to its high effectiveness against nymphs and females of D. opuntiae. In the field experiment, D-limonene at 0.5 g/L and S. feltiae applied at 75 IJs cm−2 were effective in reducing nymph and adult female populations by 85.3–93.9% at 12 days of post exposure period. To our knowledge, this work is the first report on the use of EPNs to control D. opuntiae. Thus, in addition to D-limonene, both Moroccan EPN isolates S. feltiae, and H. bacteriophora could be used as part of the integrated pest management strategy against D. opuntiae. Many factors such as temperature can affect the establishment and effectiveness of EPNs under field conditions. Therefore, additional studies under field conditions are needed.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.audienceCGIARen_US
dcterms.audienceDonorsen_US
dcterms.available2022-05-09en_US
dcterms.bibliographicCitationEl Aalaoui, M., Mokrini, F., Dababat, A. A., Lahlali, R., & Sbaghi, M. (2022). Moroccan entomopathogenic nematodes as potential biocontrol agents against Dactylopius opuntiae (Hemiptera: Dactylopiidae). Scientific Reports, 12(1). https://doi.org/10.1038/s41598-022-11709-4en_US
dcterms.issued2022-05-09en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-4.0en_US
dcterms.publisherSpringeren_US
dcterms.subjectecologyen_US
dcterms.subjectplant sciencesen_US
dcterms.subjectnematodaen_US
dcterms.subjectdactylopius opuntiaeen_US
dcterms.typeJournal Articleen_US

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