Two Day Excursions

Description: Invasive and emerging pests and pathogens are recognized to be among the most severe threats to forest ecosystems. Three main factors have been identified as the causes of these increasing biotic disturbances: introductions of exotic species in the first place, the effects of climate change, and, lastly, changes in land management. Effective detection, surveillance and control methods are needed to preserve the vitality of forests and the long-term delivery of forest ecosystem services.

We will illustrate these issues with four striking examples of ongoing or emerging health problems in the coniferous and deciduous managed forests of Germany and France: the outbreaks of the spruce bark beetles that are increasing as a result of anthropogenic-induced climate change, the recent outbreaks of the forest cockchafer which jeopardize the natural regeneration of deciduous forests, the oak processionary moth which cause heavy defoliations and severe human health problems, and the ash dieback which causes extensive mortality.

In addition the excursion will provide the opportunity to cross green and hilly landscapes, visit historic medieval villages and taste renowned white wines.