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portada Minute Polyphagous Wasps as Biological Pest Control in European Ecological Fruit Cultivation
Type
Physical Book
Publisher
Author
Language
English
Pages
20
Format
Paperback
ISBN13
9783668843950

Minute Polyphagous Wasps as Biological Pest Control in European Ecological Fruit Cultivation

Moritz Stüber (Author) · Grin Verlag · Paperback

Minute Polyphagous Wasps as Biological Pest Control in European Ecological Fruit Cultivation - Moritz Stüber

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Synopsis "Minute Polyphagous Wasps as Biological Pest Control in European Ecological Fruit Cultivation"

Research Paper (undergraduate) from the year 2018 in the subject Agrarian Studies, grade: 1,7, University of Hohenheim (Zentrum Ökologischer Landbau Universität Hohenheim), language: English, abstract: Mass releases of parasitic minute polyphagous wasps is a common biological pest control practice across the world. The application can reduce chemical insecticide use and therefore contribute to a more sustainable agriculture. Nearly all frequently used species derive from the genus Trichogramma. These wasps are released on several Million hectares of agricultural production, particularly in maize cultivation. This report is aiming to give an insight into a growing system, where Trichogramma practices are still under development. With regards to the application density, efficacy, applied species and environmental risks of Trichogramma in European ecological fruit cultivation was reviewed. The common application methods are lacking consistent results and pest control efficacy, since orchards differ greatly from the usual grain field cropping system. Three research directions to increase efficiency can be distinguished: new application methods (1); environmental attributes that favour Trichogramma (2) and suitable Trichogramma (mixtures) species (3). Development of equipment, suitable to disperse Trichogramma eggs more equally between rows is needed. A nozzle fan, spraying Trichogramma eggs, seemed to decrease costs and labour force by simultaneously increasing pest control consistency. Flower strips, particularly by containing buckwheat and mustard, can increase the longevity and fecundity of the wasps, leading to a better pest control performance. Local Trichogramma species should be preferred, as they are used to the climatic conditions and contribute to agroecological practices. The risk of mass releases on non-target insect species must be surveyed continuously. No significant effects were found, but off-field emigration does happen and needs to be monitored. The r

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