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Guava/myrtle rust in Queensland

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Formerly known as the Forest Research Institute, Scion has been a leader in research relating to forest health for over 50 years. The Rotorua-based Crown Research Institute continues to provide science that will protect all forests from damage caused by insect pests, pathogens and weeds. The information presented below arises from these research activities.

From Forest Health News 212, January 2011.

The last issue of Forest Health News dealt with guava/myrtle rust (caused by Puccinia psidii) in New South Wales and speculated on what this means for New Zealand. As the populations of P. psidii in Australia increase it seems likely that the spores of the rust will reach here when atmospheric conditions are right. Just before Christmas last year P. psidii was found at three plant nurseries just north of Brisbane and subsequent surveys have found it on more than 10 sites in south east Queensland.

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