Effect of pruning on disease incidence of apple scab and powdery mildew in integrated and organic apple production

A tétel rövid nézete
dc.creatorHolb, I. J.
dc.date2005-03-14
dc.date.accessioned2021-06-28T09:59:12Z
dc.date.available2021-06-28T09:59:12Z
dc.descriptionIn a three-year study, the effect of two winter pruning treatments (strong and weak) on apple scab (Venturia inaequalis) and powdery mildew (Podosphaera leucotricha) was evaluated on six apple cultivars (`Rewena', `Elstar', 'Liberty', 'Gala', 'Pilot' and `Jonica') in two environmentally-benign apple production systems (integrated and organic). Results on apple scab showed that compared to the integrated production system, the pathogen caused significantly more infection on the leaves of cvs. `Elstar', 'Gala' and `Jonica' in the organic production system. The effect of pruning treatments on apple scab was mainly detectable on the cultivars susceptible to the disease such as cvs. 'Gala' and `Jonica'. The weak pruning correlated with a higher level of apple scab infection than the strong pruning, especially in the organic production system. Primary mildew infection was very low in both protection systems (below 2 %), therefore, effect of pruning on primary mildew infection could not be analysed. Low secondary mildew incidence was detected in the organically treated orchard part; however, incidence of powdery mildew was significantly higher (P> 0.05) on cvs. 'Elstar', 'Pilot' and `Jonica' in the integrated orchard part compared to cvs. 'Gala', 'Rewena' and 'Liberty'. The highest incidence of mildew was on cv. 'Elstar'. Pruning had very low effect on incidence of secondary mildew infection on leaves.
dc.formatapplication/pdf
dc.identifierhttps://ojs.lib.unideb.hu/IJHS/article/view/559
dc.identifier10.31421/IJHS/11/1/559
dc.identifier.urihttp://hdl.handle.net/2437/314296
dc.languageeng
dc.publisherUniversity of Debrecen
dc.relationhttps://ojs.lib.unideb.hu/IJHS/article/view/559/558
dc.sourceInternational Journal of Horticultural Science; Vol. 11 No. 1 (2005); 57-61.
dc.source2676-931X
dc.source1585-0404
dc.source10.31421/IJHS/11/1
dc.subjectapple scab
dc.subjectenvironmentally-benign apple production
dc.subjecthigh-density apple orchard
dc.subjectintegrated
dc.subjectMalus x domestica Bork.
dc.subjectorganic
dc.subjectPodosphaera leucotricha
dc.subjectpowdery mildew
dc.subjectpruning
dc.subjectVenturia inaequalis
dc.titleEffect of pruning on disease incidence of apple scab and powdery mildew in integrated and organic apple production
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
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International Journal of Horticultural Science