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Perennial flower strips for pest control in organic apple orchards - A pan-European study

Cahenzli, Fabian; Sigsgaard, Lene; Daniel, Claudia; Herz, Annette; Jamar, Laurent; Kelderer, Markus; Kramer Jacobsen, Stine; Kruczyńska, Dorota; Matray, Silvia; Porcel, Mario; Sekrecka, Małgorzata; Świergielg, Weronika; Tasin, Marco; Telfser, Josef and Pfiffner, Lukas (2019) Perennial flower strips for pest control in organic apple orchards - A pan-European study. Agriculture, Ecosystems and Environment, 278, pp. 43-53.

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Online at: https://www.sciencedirect.com/science/article/pii/S0167880919300696

Summary

In many crops, the intensive use of pesticides causes major problems both for the environment and for natural ecosystem services. Apple is Europe's most frequently produced orchard fruit, requiring high pesticide input to combat the most important apple insect pests, Dysaphis plantaginea (Passerini) and Cydia pomonella (L.). Here we sought to control these pests by promoting natural enemies using sown perennial flower strips. We trialled these in the alleyways of organic apple orchards in seven European countries. Visual assessments over two years revealed a higher number of natural enemies on plant parts, and specifically in D. plantaginea colonies on trees, in flower strip plots than on trees in control plots with standard orchard vegetation. Trees in the flower strip plots recorded a slower D. plantaginea population increase as compared with control plots, resulting in reduced fruit damage after the second fruit drop. Likewise, from 2016–2017, the number of preadult codling moths decreased more in the flower strip plots as compared to the control plots resulting in reduced fruit damage. Our study shows on a wide continental scale that the implementation of perennial flower strips in the alleyways between apple tree rows boosts natural enemies and reduces key apple pests and the associated fruit damage. This supports the role of functional agrobiodiversity as a way to potentially reduce insecticide use in orchards and thus further promote conservation of agrobiodiversity. We also provide suggested plant composition for flower strips adapted to different European countries and recommendations for implementation and management in practice.


EPrint Type:Journal paper
Keywords:Conservation biological control, Cydia pomonella, Dysaphis plantaginea, Flower strip, Functional agrobiodiversity, Habitat management, CoreOrganicPlus, ECOORCHARD, EcoOrchard, FiBL20031
Subjects: Environmental aspects > Biodiversity and ecosystem services
Crop husbandry > Production systems > Fruit and berries
Crop husbandry > Crop health, quality, protection
Research affiliation: Belgium > Centre Wallon de Recherche Agronomique (CRA-W) (Gembloux)
Germany > Federal Research Centre for Cultivated Plants - JKI > Institute for Biological Control
Denmark > KU - University of Copenhagen
European Union > CORE Organic Plus > ECOORCHARD
Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Plant Protection and Biodiversity
Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Entomolgy
Italy > Laimburg Research Centre for Agriculture and Forestry of BZ Province
Poland
Sweden > Swedish University of Agricultural Sciences (SLU)
DOI:doi.org/10.1016/j.agee.2019.03.011
Related Links:http://projects.au.dk/coreorganicplus/research-projects/ecoorchard/, https://www.fibl.org/de/projektdatenbank/projektitem/project/1041.html
Deposited By: Pfiffner, Dr. Lukas
ID Code:35483
Deposited On:06 Jun 2019 09:00
Last Modified:06 Jun 2019 09:00
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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