Report
APBSF Project Progress Report, Quantifying the impact of myrtle rust and endemic pathogens in highly disturbed forests
University of the Sunshine Coast
2021
Abstract
Trials evaluating the impact of the exotic pathogen Austropuccinia psidii (causing myrtle rust) and the endemic pathogen Quambalaria pitereka (causing Quambalaria shoot blight: QSB) were established at two locations in southeast Queensland. These trials were set up on sites that had recent forestry operations including tree planting and harvesting operations which resulted in coppice regrowth. Three myrtaceous species were included in the study: Eucalyptus cloeziana, E. siderophloia and Corymbia citriodora subsp. variegata. Two-year old E. cloeziana trees appeared to have reach a stage (height) where they had outgrown susceptibility to myrtle rust. However, Corymbia citriodora subsp. variegata trees at the same age were being moderately impacted by QSB. Coppice regrowth of these species was more impacted by the fungal pathogens than intact trees. Three fungicides were also evaluated during this study (one commercial fungicide and two novel fungicides). All had beneficial effects against the fungal diseases in terms of disease incidence or tree growth. The efficacy of the two novel fungicides warrants further investigation which may lead to an application for APVMA reg-istration.
Details
- Title
- APBSF Project Progress Report, Quantifying the impact of myrtle rust and endemic pathogens in highly disturbed forests
- Authors
- David Lee (Corresponding Author) - University of the Sunshine CoastAnne-Marie Smit Dr (Author) - University of the Sunshine CoastTrinh Huynh Dr (Author) - University of the Sunshine Coast
- Publication details
- 20 pages
- Publisher
- University of the Sunshine Coast
- Date published
- 2021
- Grants
- Impacts of Myrtle rust and endemic pathogens following disturbance in productive forests, 0980026683, Australian Plant Biosecurity Science Foundation
- Organisation Unit
- Forest Industries Research Centre; Forest Research Institute
- Language
- English
- Record Identifier
- 991243696402621
- Output Type
- Report
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