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Jannicke Gallinger

Jannicke Gallinger
I am a postdoctoral researcher at the Agricultural Entomology unit. I am a chemical ecologist with interest in applied and fundamental aspects of plant-plant and plant-insect communication by semiochemicals.


The use of semiochemicals have a great potential for development of environmental-friendly plant protection measures. The identification of behavior modifying semiochemicals has been the center of my research. Overall aim is the development and improvement of sustainable crop protection strategies. 

Besides the development of agricultural applications I am interested in fundamental aspects of semiochemicals, mostly their role in multitrophic interactions between plants, microbes, and insects.

My work includes chemical analysis of primary and secondary plant metabolites as well as behavioural studies of pest insects and field trails.


Currently I am investigating plant-plant communication by volatile chemical signals in crop mixtures and their impact on biological pest control within the EcoStack project. The overall objective of the project is to support ecologically, economically and socially sustainable crop production and protection of functional biodiversity via stacking. 

Specifically we are investigating how cropping systems, such as species/variety mixtures or companion cropping (undersowing, intercropping, trap cropping) can advantage yield quality and stability, improve pest, weed and disease control and enhanced ecosystem services.



I obtained my PhD at the Technical University of Darmstadt (Germany). During my PhD project I worked at the Applied Chemical Ecology lab at the Julius Kühn-Institut (JKI), Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture, Dossenheim (Germany). I investigated the ecology of phytoplasma transmitting psyllids and the impact of phytoplasma infections on host plants and psyllid vectors. Aiming at the development of new strategies for the control of psyllids, such as push-pull and attract-and-kill strategies. I continued my work at the JKI on a postdoc position investigating the impact of climate change parameters on the intra- and interspecific chemical communication of grape berry moth and pear psyllids and their host plants.

During my master thesis at the Chemical Ecology working group at University of Bielefeld, I investigated the influence of different arbuscular mycorrhizal fungi species on host plant physiology and plant metabolites and their impact on plant-insect interactions. 

Selected publications

Gross, J.; Gallinger, J.; Görg, L. M. (2021): Interactions between phloem-restricted bacterial plant pathogens, their vector insects, host plants, and natural enemies, mediated by primary and secondary plant metabolites. Entomologia Generalis.

Gallinger, J.; Zikeli, K.; Zimmermann, M.R.; Görg, L.M.; Mithöfer, A.; Reichelt, M.; Seemüller, E.; Gross, J.; Furch, A.C.U. (2021): Specialized 16SrX phytoplasmas induce diverse morphological and physiological changes in their respective fruit crops. PLoS pathogens.

Görg, L.M., Gallinger, J., Gross, J. (2021) The phytopathogen ‘Candidatus Phytoplasma mali’ alters apple tree phloem composition and affects oviposition behavior of its vector Cacopsylla picta. Chemoecology.

Gallinger, J., Gross, J. (2020). Phloem metabolites of Prunus sp. rather than infection with Candidatus Phytoplasma prunorum influence feeding behavior of Cacopsylla pruni nymphs. Journal of Chemical Ecology.

Gallinger, J., Jarausch, B., Jarausch, W., Gross, J. (2020): Host plant preferences and detection of host plant volatiles of the migrating psyllid species Cacopsylla pruni, the vector of European Stone Fruit Yellows. Journal of Pest Science 93: 461-475.

Gross, J., Czarnobai de Jorge, B., Gallinger, J., Görg, L., Maurer, D., Rid, M. (2019): The chemistry of multitrophic interactions in phytoplasma disease systems and advances in control of psyllid vectors with semiochemicals. Phytopathogenic Mollicutes 9(1): 157-158. 

Gross, J., Gallinger, J., Rid, M. (2019): Collection, identification and statistical analysis of volatile organic compound patterns emitted by phytoplasma infected plants. In: Musetti, R.; Pagliari, L. (Hrsg.): Phytoplasmas : Methods and Protocols (Methods in molecular biology 1875), New York, NY, 333-343.

Seemüller, E., Gallinger, J., Jelkmann, W., Jarausch, W. (2018): Inheritance of apple proliferation resistance by parental lines of apomictic Malus sieboldii as donor of resistance in rootstock breeding, European Journal of Plant Pathology 151: 767-779

Gallinger, J., Gross, J. (2018): Unraveling the Host Plant Alternation of Cacopsylla pruni – Adults but Not Nymphs Can Survive on Conifers Due to Phloem/Xylem Composition. Frontiers in Plant Science 9: 484.


Non employee at the Department of Ecology; NJ, Agricultural Entomology Unit
Telephone: 018673203, +46730868033
Postal address:
Inst för Ekologi, Box 7044
750 07 UPPSALA
Visiting address: Ulls väg 16, Uppsala