Exploring the Interplay Between Willows, Gall-Inducing Insects, and Associated Fungi

Z_Myk_2010-07

The joint research by A. Kehl, G. Rambold and coworkers focused on ecological interactions among plants, insects, and fungi in temperate willow (Salix) habitats. Central to their investigations were morphological and phenological traits of host plants and their influence on the abundance and distribution of gall-inducing insects, particularly the sawfly Pontania proxima. The studies revealed that plant structure and seasonal development significantly shape gall occurrence.

In addition, they explored whether floral scent plays a role in host selection by galling Hymenoptera. Findings suggest that olfactory cues may indeed influence host recognition and choice.

Another focus was the occurrence of sooty mould fungi on willow leaves. The researchers analyzed how sap-feeding insects, plant traits, and weather parameters affect the development of these surface biofilms. The results indicated a strong link between insect activity and the presence of epiphytic fungal growth.

Together, these studies contribute to a better understanding of how biotic and abiotic factors interact in plant–insect–fungus systems and offer insights into the ecological dynamics of willow habitats.

List of publications of this Project