Forest protection

Forest protection

Loss events such as windfall, bark beetle or game damage present an ever re-occurring challenge to forest staff. These very complex relationships need careful evaluation. Therefore extensive knowledge of causes and counter-measures is essential.

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Forest protection risk of Norway spruce

Numerous insects and fungi are capable of causing damage to spruce and is our tree species with the highest forest protection risk. As a result of climate change the situation will become even more intensified.

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Diplodia shoot dieback of conifers

Obvious signs of dieback, especially in pines, and caused by Diplodia shoot dieback, are nothing new. Up to now, serious damage has been caused only in warmer regions. Is this likely to change as a result of global warming?

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The Asian longhorned beetle in Europe

The ALB was first spotted on European soil in 2001. Sightings of infestations have been on the rise since. (27)
Strategies for managing invasive robinia

The North American robinia (black locust) has many positive, but also many negative characteristics. Today, it has become part of ecosystems and the cultural landscape in many places, so neither free and unlimited cultivation nor widespread active control measures make sense.

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Japanese beetle – an invasive species approaching Switzerland

The Japanese beetle is heading for Switzerland. In 2017, beetles were caught for the first time in precautionary traps installed along the border with Italy. What measures can be taken to prevent its arrival?

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Sooty bark disease – the first discovery in Bavaria

The sooty bark disease infests maple species, is found in Austria and Switzerland, and has now made its way to Germany. What does this mean for the future of the maple?

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Spreading dynamics of the European spruce bark beetle in the Black Forest National Park

The goal of the research is to identify the locations that are preferred by I. typographus and thus would be particularly at risk for infestation. To achieve this, the specific characteristics of landing sites are analyzed to determine the preferred stand and terrain structures that are preferred during dispersion.

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Verticillium wilt in sycamore

The wilting of shoots and trunk necrosis – the cause of these symptoms in the sycamore is a fungus called Verticillium dahliae. A project was set up to find out where it occurs and whether drought stress favours its development.

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Zigzag elm sawfly recorded in Switzerland for the first time

In June 2017, the zigzag elm sawfly, an invasive species originating in East Asia, was found in Switzerland for the first time, in wych elms in the Canton of Zurich. It has been spreading across Europe since 2003.

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Bark beetles - a topical issue

The bark beetles are often a problem for spruce trees. To counteract the problem effectively, it is crucial that forest owners and forest managers are well-informed on the issue. You will find answers to the FAQ here.

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Heading image: FVA/Hanne Gössl