Dutch Elm Disease Management - What we are doing

Recent Work

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. If our team finds a tree with DED symptoms, samples can be taken and submitted to the Scion laboratories for further testing.

Extensive beetle trapping using pheromone lures, also occurs between December and April, which is the main flight season for the beetle. Beetles caught in these sticky traps are sent to the Scion laboratories to see if they are carrying the spores of the fungus.

Infected trees are removed to stop the beetles breeding and spreading the disease to healthy elms.