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Tropentag, September 20 - 22, 2017 in Bonn

"Future Agriculture: Social-ecological transitions and bio-cultural shifts"

The Project PICTA-KILL - Novel Strategies for Biological Psyllid Pest Control

Linda Muskat1, Pascal Humbert1, Jürgen Gross2, Louisa Görg2, Cornelia Dippel3, Elisa Beitzen-Heineke4, Wilhelm Beitzen-Heineke4, Michael Przyklenk4, Anant Patel1

1Bielefeld University of Applied Sciences, Wg Fermentation and Formulation of Biologicals and Chemicals, Germany
2Julius Kühn Institute (JKI Dossenheim), Germany
3Insect Services, Germany
4BIOCARE Gesellschaft für biologische Schutzmittel mbH, Germany


Psyllid pests are distributed all over the world and cause damage in crop plants. Novel defense strategies against these insect pests are of international interest. The use of entomopathogenic fungi as biocontrol agents for reducing psyllid pest populations represents a plant protection method of low risk for nature and humans as well.
Being the vector of Candidatus Phytoplasma mali, the infectious agent of apple proliferation, the psyllid Cacopsylla picta is responsible for an annual economic loss of a three-digit-million range in Europe. Because there are no direct measures to combat apple proliferation, the vector itself has to be controlled in order to protect the plants. In Germany, there are no authorised plant protection products available, neither for organic farming nor for conventional farming. New insights into the scent preferences of C. picta offer innovative options for its control. Hence, the aim of this project is to develop formulations, which can be applied for “Attract-and-Kill”-strategies against C. picta. Furthermore, it will be examined if a combination with repellent agents supports the effect (“Push-Pull-Kill”- strategy).
In laboratory and field trials new repellent, attractive and arresting substances, entomopathogenic microorganisms and other insecticides effective against C. picta as well as formulation materials and methods for these active ingredients will be screened. For the entomopathogenic microorganisms, cost efficient mass production processes will be developed. Appropriate formulations will be developed and tested in laboratory and field trials. This joint projects cooperates with the Eilenberg group of Copenhagen University on entomopathogenic fungi. First results of the recently started project on strain selection, cultivation, identification of semiochemicals and formulation will be presented.

Keywords: Attract-and-kill, Cacopsylla picta, entomopathogenic microorganisms, Push-Pull-Kill

Contact Address: Linda Muskat, Bielefeld University of Applied Sciences, Wg Fermentation and Formulation of Biologicals and Chemicals, Faculty of Engineering Sciences and Mathematics, Bielefeld, Germany, e-mail: linda_claire.muskat@fh-bielefeld.de

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