Farm Forestry New Zealand
PESTS AND DISEASES OF FORESTRY IN NEW ZEALAND
Barron Road Syndrome (BRS)
Scion is the leading provider of forest-related knowledge in New Zealand
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 No. 21, June 1993.
Barron Road Syndrome
Pathogenicity trials on potted Eucalyptus regnans using four fungi implicated as having a contributory role to the Barron Road Syndrome, have been evaluated. Colletotrichum sp. was reisolated from inoculated trees showing tip death and shoot loss. Trees inoculated with mycelial suspensions of the other fungi (Aulographina eucalypti, Cladosporium sp. and Elsinoe sp.) remained symptomless after 2 months.
(Monique Williams)
From Forest Health News No. 15, November 1992
Barron Road Syndrome (BRS) - Eucalyptus regnans
On the 19 November, a meeting was held at FRI to discuss the status of BRS research. FRI staff (from Forest Health and Soils), Peter Carter, Rob van Rossen and Gordon Beets of CHH; and John Bathgate of Waikato University came to the conclusion that BRS was not controllable by acceptable operational practices. CHH have stopped planting all eucalypts and E. regnans seems to be preferred only by Caxton, who should be able to select suitable sites for their small resource. It was decided to continue for this season only, attempts to identify the causal agents of BRS and to assess E. regnans family plantings for resistance.
(Nod Kay)
UPDATE - on what's happening in Forest Health June/July 1991
The foliage of Eucalyptus regnans trees sprayed regularly with fungicide has been kept free of the galls and spots typical of the Barron Road Syndrome. Since spraying ceased (late May) symptoms have begun to appear and material from these trees has been collected fortnightly for detailed microscopic examination and for isolation work.
This information is intended for general interest only. It is not intended to be a substitute for specific specialist advice on any matter and should not be relied on for that purpose. Scion will not be liable for any direct, indirect, incidental, special, consequential or exemplary damages, loss of profits, or any other intangible losses that result from using the information provided on this site.
(Scion is the trading name of the New Zealand Forest Research Institute Limited.)
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