Fate and activity of fungal BCAs delivered to strawberry flowers and their potential for integration with fungicides

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Birgit Jensen, Birgitte Andersen, Ulf Thrane, Dan Funck Jensen, Kristian Fog Nielsen, John Larsen

Grey mold caused by Botrytis cinerea is a serious strawberry disease. Yield loss is prevented by repeated fungicide treatments during flowering which increases the risk of pesticide residues in berries. Fruit lesions are typically initiated from B. cinerea infected stamens or from dead infected petals adhering to the fruit or trapped under the calyx. To implement biological control agents (BCAs) as an alternative control measure, it is crucial that the BCAs are able to colonize flower parts rapidly to combat B. cinerea. The combination of fungicides with BCAs may enhance and stabilise the efficacy of BCAs. The underlying mechanism for such positive combination effects may be related to an improved establishment of the BCAs when their natural competitors have been adversely affected by the fungicide or that the B. cinerea infection has been slowed down.
The present work report results on 1) the interaction between BCAs and B. cinerea on strawberry flowers, 2) the sensitivity of BCAs to strawberry fungicides, and 3) the effect of combined BCA+fungicide treatment on BCAs and on the indigenous mycobiota.
Original languageEnglish
Title of host publicationIPM in Nordic and Baltic berry crops
Number of pages2
PublisherNordic Association of Agricultural Scientists (NJF)
Publication date2013
Pages11-12
Publication statusPublished - 2013
EventIPM in Nordic and Baltic berry crops 2013 - Copenhagen, Denmark
Duration: 12 Nov 201313 Nov 2013

Conference

ConferenceIPM in Nordic and Baltic berry crops 2013
LandDenmark
ByCopenhagen
Periode12/11/201313/11/2013
SeriesNJF Seminar
Volume465

    Research areas

  • The Faculty of Science - Biological control, Botrytis cinerea, Clonostachys rosea, strawberry, Fungicides, Industrial

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