Invasive Ailanthus management project begins
The Public Institute of Krka National Park is a partner on the project “LIFE CONTRA Ailanthus” financed through the LIFE Programme.

The Ministry of Economy and Sustainable Development has signed a contract with the European Commission for the project “LIFE CONTRA Ailanthus” aimed at establishing control over the invasive species Ailanthus. The project is valued at a total of HRK 19.4 million, and is 60% co-financed by the European Union.

The project is financed through the LIFE Programme, an instrument of the European Union intended to finance activities in the areas of environmental protection, nature and climate. The project will be implemented by the Department for Environmental Protection and Nature of the Ministry of Economy and Sustainable Development. The project implementation period is four and a half years.

Ailanthus (Ailanthus altissima (Mill.) Swingle) is a tree originating from east Asia that has been planted worldwide as a horticultural tree since the 18th century. Today, it is considered one of the most invasive plant species in Europe. Ailanthus forces out the native vegetation, reducing biodiversity, incurring damages to agriculture, causing allergies in people, and destroying cultural heritage and other structures with its exceptionally strong root system. Due to its negative impacts on biodiversity, the economy and human health, it is included on the list of invasive alien species that are a cause for concern in the European Union. In Croatia, Ailanthus is widely distributed, particularly threatening the protected habitats and species in the Mediterranean region.

This project aims to establish control over this invasive tree species in the Mediterranean region of Croatia, in two areas of the Ecological Network of the Republic of Croatia (HR2000918 Broader area of Krka National Park; HR2001364 Southeastern part of the Pelješac Peninsula), and in cities with a historical city core (Ston, Mali Ston and Dubrovnik). Partners on the project are the Public Institute of Krka National Park, the Public Institute for managing protected natural areas in Dubrovnik-Neretva County, and Vrtlar d.o.o. from Dubrovnik.

The expected results of the project “LIFE CONTRA Ailanthus” are improved status of conserving Natura 2000 habitat types, preserving cultural heritage, preventing the further spread of invasive alien species, and the development of a national protocol. Additional objectives are capacity building for managing invasive species, and raising public awareness of the negative impacts of invasive species at the national level.

Prior to entering the project as a partner, the Public Institute of Krka National Park conducted a campaign to remove Ailanthus on experimental plots in the Park.

LIFE CONTRA Ailanthus

JOŠ NOVOSTI IZ KATEGORIJE

  11/12/2025
The final conference of the LIFE CONTRA Ailanthus project

The final conference of the LIFE CONTRA Ailanthus project, which aims to establish control over the invasive alien species Ailanthus altissima (pajasen) in Croatia, was held today at the Krka Eco Campus in Puljane

  17/09/2024
A volunteer program at Krka NP: the successful removal of invasive species through education and actions

The volunteer program called “Guardians of native species habitats”, launched last year, took place from September 2 to 11, 2024. This year, it brought together enthusiasts, volunteers, and experts, with the aim of combating pajasen or tree-of-heaven (Ailanthus altissima), an invasive non-native plant species, and raising awareness about the importance of preserving the natural heritage.

  18/06/2024
The Habitat Protector volunteer programme is open for applications

Apply to volunteer at Krka National Park from 2 to 11 September 2024, and become a Krka Habitat Protector

  22/02/2024
In February, the Krka Eco Campus was the centre of education on practices to combat the invasive Tree of Heaven

The Public Institute of Krka National Park hosted the pupils of six primary schools from Šibenik-Knin County who learned about the natural values of Krka National Park, and attended an educational workshop on the topic of combatting the spread of the invasive species Tree of Heaven.

109

km2

07

waterfalls

388

km of bike routes

47

km of hiking trails

10

entrances

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