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Department of Primary Industry and Fisheries (DPIF)

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Exotic outbreaks and diseases

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Exotic Plant Diseases

For advice or identification of any plant disease please contact Plant Pathology.

Myrtle Rust is caused by the fungus Uredo rangelii and isconsidered part of Eucalyptus/guava rust fungi group. It was identified in New South Wales in April 2010. Myrtle Rust has not been detected in the Northern Territory. Report any suspected Myrtle Rust sightings to Plant Heath Services on 8999 2118 or the Exotic Plant Pest Hotline 1800 084 881. [more]
Mycosphaerella scaevolae is an exotic fungal pathogen that causes a leaf spot disease of Scaevola species. It was discovered in Darwin in 2006 on coastal plantings [more]

Teak Leaf Rust

A leaf rust disease of teak, caused by the fungus Olivea tectonae, was recently discovered in the rural area of Darwin. It is the first time this disease has been seen in Australia. Surveys in the NT have shown that it is also present on teak in the Douglas Daly region but not in Katherine. [more]
Tomato Leaf Roll Tomato leaf roll is one of the two most serious diseases of tomatoes in the Top End. The other is bacterial wilt. Tomato leaf roll is particularly serious along coastal areas. Losses of up to 100% have been recorded and losses of 60% are quite common. In contrast to the 1970s and 1980s, the last several years up to and including 2001 were relatively free of tomato leaf roll. However, in 2002 there was a sharp increase in the reported cases of the disease attacking tomato plants, reaching the severe levels of the 1970s and 1980s. [more]