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Ailantex® war in Österreich als Herbizid mit der Pfl.Reg.Nr. 4360-0 nach Art. 53 der VO (EG) 1107/2009 in Forst, Zierpflanzen- und Weinbau von 04.05.2022 - 31.08.2022 und in Nichtkulturland (Wege und Plätze, Gleisanlagen und landwirtschaftlich nicht genutzte Flächen) von 23.04.2022-30.06.2022 und 01.09.2022-13.10.2022 zugelassen.
Derzeit besteht keine Zulassung, weshalb das Produkt weder in Verkehr gebracht, gelagert noch angewandt werden darf.

Die nachfolgenden Informationen zu Verticillium nonalfalfae beruhen auf langjährigen Forschungsergebnissen der Universität für Bodenkultur, Wien.

Ailantex® was approved in Austria from 23.04. – 13.10.2022 according to Art. 53 of Regulation (EC) 1107/2009 (Pfl.Reg.Nr. 4360-0). There is currently no authorisation, therefore the product may not be placed on the market, stored or used.

The following information on Verticillium nonalfalfae is based on many years of research at the University of Natural Resources and Life Sciences, Vienna.

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Verticillium nonalfalfae
a natural antagonist of Ailanthus altissima (Tree of Heaven)

The information on this page is based on 8 years of research and development work at the University of Natural Resources and Life Sciences Vienna.
Tree of Heaven – an invasive neophyte
Tree of Heaven
Ailanthus altissima
PfeilExtremely invasive neophyte - listed as invasive alien species of Union concern according to commission implementing regulation (EU) 2019/1262
PfeilStrong presence in urban areas and along traffic routes
PfeilMay cause significant damage to buildings and infrastructure
PfeilCan grow in poor soil fertility
PfeilRapid growth in early development
PfeilDevelops sprouts and root suckers
PfeilEarly and abundant fructification
PfeilImpairs growth of other plants by the excretion of allelopathic (growth-inhibiting) substances.
PfeilMay cause allergic reactions
PfeilAlmost no natural antagonists present in Europe

Halmschlager, E.; Maschek O. (2019): Verticillium gegen Götterbaum. Taspo-Baumzeitung 02/2019, 25-29. FullText
Maschek, O.; Halmschlager, E.: Effects of Verticillium nonalfalfae on Ailanthus altissima and associated indigenous and invasive tree species in eastern Austria. EUR J FOREST RES. 2018; 137(2): 197-209. FullText
Maschek, O.; Halmschlager, E.: Natural distribution of Verticillium wilt on invasive Ailanthus altissima in eastern Austria and its potential for biocontrol. FOREST PATHOL. 2017; 47(5): FullText
Maschek, O.; Halmschlager, E.: A rapid, reliable and less-destructive method for stem inoculations on trees. FOREST PATHOL. 2016; 46(2): 171-173. FullText
Maschek, O.; Halmschlager, E.: First Report of Verticillium Wilt on Ailanthus altissima in Europe Caused by Verticillium nonalfalfae. PLANT DIS. 2016; 100(2): 529-529. FullText
Disease progression of the Tree of Heaven

gesunder Götterbaum
Healthy trees
abgestorbene Pflanzenteile mit Notaustrieben
Partially withered plants
gesamte Pflanze abgestorben
Withered plants
Disease progression

After infection, fungal spores of Verticillium nonalfalfae are distributed in the sap stream. Germinated spores in turn form local mycelium aggregations, which release enzymes and toxins into the water transport tissue. This leads to withering and subsequent decay of the plants. The first symptoms can occur 4 - 6 weeks after inoculation if applied early and under favourable conditions. In the case of large trees, the effect is usually only visible in the following year. The fungus can also spread into neighbouring shoots if they are connected to an infected tree by root runners.
Natural habitat

  • PfeilForest
  • PfeilNon-cultivated land, such as
    Railway tracks or
    Areas not used for agricultural purposes (eg. pipeline routes)
  • PfeilOrnamentals plant cultivation, including parks and paths
  • PfeilViticulture

Forst städtischen Bereich Zierpflanzenbau Weinbau
städtischen Bereich städtischen Bereich städtischen Bereich
Zierpflanzenbau städtischen Bereich Nichtkulturland Leitungstrassen
städtischen Bereich Forst städtischen Bereich Leitungstrassen

further information
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