Myrtle rust by dffhrtcv3


									                                                       Biosecurity Queensland
Department of Employment, Economic Development and Innovation

                                                                                                                                                                                    Myrtle rust

                                                                                Myrtle rust is a serious fungal disease that affects plants in the   •	 contaminated plant waste, timber, wood packaging and
                                                                                Myrtaceae family. This family includes Australian natives such          dunnage
                                                                                as bottlebrush, tea-tree and eucalypts.                              •	 contaminated equipment and tools used on or around
                                                                                                                                                        plants (e.g. chainsaws, secateurs)
                                                                                Myrtle rust also affects many plants that are commonly found
                                                                                                                                                     •	 contaminated clothing, shoes and other personal effects.
                                                                                in gardens. These include:
                                                                                                                                                     Myrtle rust is likely to infect plants in wet and humid
                                                                                •	 lilly pilly
                                                                                                                                                     conditions, and rust pustules can mature to release spores in
                                                                                •	 willow myrtle (cultivar names include ‘Afterdark, ‘Burgundy’
                                                                                                                                                     as little as 10–12 days. Spores can survive for up to 3 months
                                                                                   and ‘Jeddas Dream’)
                                                                                                                                                     in the environment.
                                                                                •	 thready-bark myrtle (cultivar names include ‘Blushing
                                                                                   Beauty’ and ‘Aurora’)
                                                                                •	 scrub cherry (cultivar names include ‘Aussie Boomer’,             Can I move my plants?
                                                                                   ‘Golden Hedge’ and ‘Meridian Midget’)
                                                                                                                                                     Within Queensland
                                                                                •	 lemon-scented myrtle.
                                                                                                                                                     There are no restrictions on private individuals moving plants
                                                                                Myrtle rust cannot be eradicated, as it produces large numbers       within Queensland. However, all people moving myrtaceous
                                                                                of spores that are easily spread. However, to determine how far      plants or plant material are encouraged to check that the
                                                                                it has spread and to learn more about the disease, Biosecurity       plants are free from myrtle rust before moving them. Where
                                                                                Queensland needs to know if you think you have seen myrtle           possible, avoid moving host plants from known infected areas
                                                                                rust. Call 13 25 23 to report any suspected sightings.               to areas where the disease has not yet established.
                                                                                The rust poses no threat to human or animal health.                  A person involved in trade or commerce must not sell
                                                                                                                                                     (or possess for sale) a plant that the person knows is (or
                                                                                What does myrtle rust look like?                                     reasonably believes may be) infested with myrtle rust.
                                                                                Myrtle rust attacks young, soft, actively growing leaves,
                                                                                shoot tips and young stems. It also attacks fruit and flowers
                                                                                of susceptible plants.                                               Several states, including Queensland, have introduced entry
                                                                                                                                                     conditions for myrtle rust host plants and appliances that have
                                                                                The first signs of rust infection are tiny raised spots or           been in contact with host plants.
                                                                                pustules. After a few days, the pustules turn a distinctive
                                                                                egg-yolk yellow.                                                     Check the Biosecurity Queensland website regularly for current
                                                                                                                                                     entry conditions.
                                                                                Some plant species such as frangipanis, hibiscus and palm
                                                                                trees may display symptoms that look like myrtle rust;               Anyone wanting to bring plants or planting material of the
                                                                                however, because these plants are not in the Myrtaceae family,       family Myrtaceae into Queensland must meet the current entry
                                                                                they do not have myrtle rust.                                        conditions. Also, they should inspect the plants to ensure they
                                                                                                                                                     are free from myrtle rust.

                                                                                How does myrtle rust spread?                                         People wanting to move myrtaceous plants or planting material
                                                                                                                                                     from Queensland to interstate markets should check with the
                                                                                Myrtle rust has the potential to spread rapidly, as it produces
                                                                                                                                                     relevant state agriculture departments before moving them.
                                                                                large numbers of small spores that can be dispersed over long
                                                                                distances by wind. The disease can also spread through the
                                                                                movement of:                                                         What do I do if I see myrtle rust?
                                                                                •	 infected or contaminated planting material, nursery stock,        Under Queensland legislation, authorities must be notified of
                                                                                   plant cuttings, flowers and germplasm                             all plants suspected of being infected with myrtle rust.
                                                                                •	 animals such as bees, birds, bats and possums that have           Report by calling Biosecurity Queensland on 13 25 23 or the
                                                                                   been in contact with rust spores                                  Exotic Plant Pest Hotline on 1800 084 881.
There are a number of options available for managing myrtle rust   The option that you select should be appropriate to your specific
infected plants on your property:                                  situation. For more information on these options, call Biosecurity
                                                                   Queensland or visit the website.
•	 Spray with fungicide.
•	 Remove and dispose of diseased plants.                          For further information, contact Biosecurity Queensland by
•	 Remove and dispose of healthy plants as a preventative          calling 13 25 23 or visiting, or call the
   measure.                                                        Exotic Plant Pest Hotline on 1800 084 881.
•	 Take no action.

Myrtle rust on beach cherry                                        Myrtle rust on Blushing Beauty myrtle
(Eugenia reinwardtiana) foliage                                    (Austromyrtus inophloia) foliage

Myrtle rust on rose apple                                          Myrtle rust on Rhodamnia sp. foliage
(Syzygium jambos) foliage
CS0214 03/11

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