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The effect of nitrogen fertilization on the incidence of olive fruit fly, olive leaf spot and olive anthracnose in two olive cultivars grown in rainfed conditions

2019Journal article Open access
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dc.contributor.authorRodrigues, M.A.
dc.contributor.authorCoelho, Valentim
dc.contributor.authorArrobas, Margarida
dc.contributor.authorGouveia, Maria Eugénia
dc.contributor.authorRaimundo, Soraia
dc.contributor.authorCorreia, Carlos M.
dc.contributor.authorBento, Albino
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2020-01-06T14:09:37Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2020-01-06T14:09:37Z
dc.date.issued2019
dc.description.abstractPests and diseases can cause significant loss of olive yield and/or justify control measures with pesticides which are harmful to the environment. Several agroecological variables, such as fertilization, can favour or limit the incidence of pests and diseases. However, in olive, few studies exist on the subject than can assist in the implementation of more sustainable phytosanitary measures. In this study the effect of nitrogen fertilization (0, 20, 40 and 120 kg N ha−1) on the incidence of olive fruit fly (Bactrocera oleae), olive leaf spot (Spilocaea oleaginea) and olive anthracnose (Colletotrichum gloeosporioides) was evaluated in two olive orchards of the cultivars ‘Cobrançosa’ and ‘Madural’. The study took place in 2017 and 2018 in Lombo, NE Portugal. Nitrogen fertilization significantly increased olive yield and nitrogen concentrations in plant tissues and induced a delay in fruit maturity. The incidence of the olive fruit fly was significantly lower in the more fertilized treatments of both cultivars. However, ‘Madural’ showed itself to be more susceptible than ‘Cobrançosa’ to olive fruit fly. The effect of nitrogen on the reduction of the incidence of the olive fruit fly was attributed to the delay caused in fruit maturation, which might have desynchronized the attractiveness of the fruits for insects to lay their eggs on their flight curve. In contrast, olive leaf spot and olive anthracnose were not influenced by nitrogen fertilization. As a result, nutrient management in olive groves must balance carefully the requirements of economic rationality with environmental preservation, particularly with regard to the harmful relationship between the use of excessive nitrogen rates and several adverse environmental effects.
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) and European Agricultural Fund for Rural Development (EAFRD) under the Programme PT2020 for financial support to Centro de Investigação de Montanha, CIMO (UID/AGR/00690/2015) and Project 023721 (02/SAICT/2016) “BioSave: Promoção do potencial económico e da sustentabilidade dos setores do azeite e da castanha”.
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationRodrigues, M. Ângelo; Coelho, Valentim; Arrobas, Margarida; Gouveia, Eugénia; Raimundo, Soraia; Correia, Carlos M.; Bento, Albino (2019). The effect of nitrogen fertilization on the incidence of olive fruit fly, olive leaf spot and olive anthracnose in two olive cultivars grown in rainfed conditions. Scientia Horticulturae. ISSN 0304-4238. 256, p. 1-9en_EN
dc.identifier.doi10.1016/j.scienta.2019.108658en_EN
dc.identifier.issn0304-4238
dc.identifier.urihttp://hdl.handle.net/10198/20240
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.subjectBactrocera oleaeen_EN
dc.subjectColletotrichum gloeosporioidesen_EN
dc.subjectNitrogen fertilizationen_EN
dc.subjectOleae europaeaen_EN
dc.subjectOlive yielden_EN
dc.subjectSpilocaea oleagineaen_EN
dc.titleThe effect of nitrogen fertilization on the incidence of olive fruit fly, olive leaf spot and olive anthracnose in two olive cultivars grown in rainfed conditionsen_EN
dc.typejournal article
dspace.entity.typePublication
person.familyNameRodrigues
person.familyNameCoelho
person.familyNameArrobas
person.familyNameGouveia
person.familyNameRaimundo
person.familyNameBento
person.givenNameManuel Ângelo
person.givenNameValentim
person.givenNameMargarida
person.givenNameMaria Eugénia
person.givenNameSoraia
person.givenNameAlbino
person.identifier.ciencia-id371D-DF0D-8D68
person.identifier.ciencia-id0618-49BC-EACE
person.identifier.ciencia-id971C-B85B-1EC0
person.identifier.ciencia-id0C14-0903-C34B
person.identifier.ciencia-idD516-325A-9AD7
person.identifier.orcid0000-0002-5367-1129
person.identifier.orcid0000-0001-5829-7669
person.identifier.orcid0000-0002-4652-485X
person.identifier.orcid0000-0002-2550-9108
person.identifier.orcid0000-0002-6505-1445
person.identifier.orcid0000-0001-5215-785X
person.identifier.ridO-1721-2016
person.identifier.ridN-9706-2016
person.identifier.scopus-author-id35270106800
person.identifier.scopus-author-id26533798200
person.identifier.scopus-author-id8575728800
person.identifier.scopus-author-id35247694000
rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
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relation.isAuthorOfPublication.latestForDiscovery22b68b4c-d245-4abe-8048-0921d1fa397f

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