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Myrtle Rust

The disease that poses a threat to our ecosystem and your Eugenia hedges!

 Prolific in the Auckland area, myrtle rust affects plants in the Myrtle family, including Feijoa, Pohutukawa, and Eugenia.

This disease poses a huge threat to New Zealand’s ecosystem, as it can infect many of our native plants. Therefore, myrtle rust is considered a biosecurity hazard!

 Myrtle rust spreads through microscopic spores that can easily travel large distances by wind, or through birds, insects, machinery and people. Once the spores come into contact with a myrtle plant, they germinate and the fungus grows through taking nutrients from its host.

 Serious infestations of myrtle rust can be lethal for your plants, as well as having long-term consequences on the regeneration of seedlings and young plants.


  • Bright yellow powdery eruptions on both sides of the leaf – signs of a early infection
  • Rust coloured (brown-grey) spots on the leaves – signs of a mature infection
  • Leaves dying off or becoming twisted
  • Canopy dieback
  • Plant death
If you see these symptoms on your plants, don’t touch it, as it can easily be spread around your garden and the wider outdoor area.
The use of specialised rust fungicides can cure your plants of myrtle rust. The most promising results come from using multiple chemicals at different stages of treatment.  
Myrtle rust infestations can be prevented through keeping your hedges trimmed, pruned, fertilised, and watered regularly, as healthy hedges are less susceptible to diseases or pest infestations.
Copper-based fungicides can also prevent the disease from occurring on your property.
Spreading compost
Compost carries good bacterias essential for decomposition of debris and soil health.
Natural fertilisers
– Fish
– Seaweed
– Blood & Bone etc.

Do you have Myrtle Rust?