Dutch Elm Disease Management - Auckland, New Zealand

Recent Work

Dutch elm disease (DED) is a vascular disease of elm trees (Ulmus spp.) caused by the fungus Ophiostoma novo-ulmi. This fungus is usually carried by Scolytid elm bark beetles.

The first New Zealand record was in 1989 from Myers Park, Auckland. Since then a successful management programme, conducted by SPS Biosecurity and Auckland Council, has kept the disease contained to within the Auckland Region.

To help protect the urban treescape, there are some strict rules under
the Biosecurity Act that are aimed at stopping the spread of Dutch elm disease within and out of the Auckland Region.




 

About Elm Trees

Elms are prominent in the urban treescape as specimen trees in parks, street trees and in private gardens.
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Signs and Symptoms of Dutch Elm Disease

Dutch elm disease is a vascular wilt caused by the fungus Ophiostoma novo-ulmi. The fungus stops the movement of water through the tree.
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What we are doing

Annual Surveillance Programme
The Auckland Council and SPS Biosecurity conduct an annual surveillance programme which monitors the health of Auckland elms at over 6,000 individual sites.
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Biosecurity rules relating to Dutch Elm Disease Control

Auckland Council

Te mau tonu o te patu kitakita urutā / sustained control of pest pathogens.
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Please Report Dutch Elm Disease

If you see any of the symptoms described here on elms, please contact

SPS Biosecurity
Phone: 0800 246 821
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Auckland Council
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