Effects of paracress (Acmella oleracea) extracts on the aphids Myzus persicae and Lipaphis erysimi and two natural enemies

dc.creatorRibeiro, Arthur V.
dc.creatorFarias, Elizeu S.
dc.creatorPicanço, Marcelo C.
dc.creatorGouvêa, Shaiene M.pt-BR
dc.creatorCarvalho, Geraldo A.
dc.creatorFidelis, Elisangela G.
dc.date2019-03-15T14:09:45Z
dc.date2019-03-15T14:09:45Z
dc.date2019-02
dc.date.accessioned2023-09-27T21:50:11Z
dc.date.available2023-09-27T21:50:11Z
dc.identifier0926-6690
dc.identifierhttps://doi.org/10.1016/j.indcrop.2018.11.040
dc.identifierhttp://www.locus.ufv.br/handle/123456789/23965
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8966863
dc.descriptionEntomologia
dc.descriptionThis study was conducted to evaluate the toxicity of paracress (Acmella oleracea) extracts to the aphids Myzus persicae (Sulz.) and Lipaphis erysimi (Kalt.) (Hemiptera: Aphididae), and the extracts selectivity to the aphid parasitoid Diaeretiella rapae McIntosh (Hymenoptera: Braconidae) and to the predator Orius insidiosus (Say) (Hemiptera: Anthocoridae). We evaluated water and ethanol extracts from A. oleracea. The ethanol extract caused 90% mortality of both aphid species within 70 h and reduced their fecundity, whereas the water extract was inactive. In addition, this extract caused no mortality of the natural enemies. In an attempt to identify bioactive compounds in the ethanol extract, three alkamides, spilanthol, undeca-2E-en-8,10-diynoic acid isobutylamide (compound 2) and (2E)-N-(2-methylbutyl)-2-undecene-8,10-diynamide (compound 3), were isolated and tested on L. erysimi. From the isolated alkamides, spilanthol and compound 2 showed high insecticidal activity against L. erysimi, indicating that they contributed to the observed extract activity. The results of this study demonstrate the potential of the ethanol extract of A. oleracea as a botanical insecticide in the management of aphids in brassicas.
dc.formatpdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherIndustrial Crops and Products
dc.relationVolume 128, Pages 399-404, February 2019
dc.rightsElsevier B. V.
dc.subjectBotanical insecticide
dc.subjectGreen peach aphid
dc.subjectMustard aphid
dc.subjectDiaeretiella rapae
dc.subjectOrius insidiosus
dc.titleEffects of paracress (Acmella oleracea) extracts on the aphids Myzus persicae and Lipaphis erysimi and two natural enemies
dc.typeArtigo


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