A parliamentary question seeks data on marri canker infection rates in WA's DEC-managed forests. The Minister acknowledges the question but states that the extent of the infection has not yet been quantified, though monitoring and research are ongoing.

AnsweredQoN 601Legislative Council
Asked
17 August 2011
Portfolio
Environment

QuestionView source ↗

FOREST MANAGEMENT — MARRI CANKER
(1) What percentage of marri trees in the Department of Environment and Conservation–managed forest estate, in all categories, is infected with the marri canker, Quambalaria coyrecup ? (2) What percentage of marri trees in the DEC-managed conservation estate, including nature reserves, national parks and nature conservation parks, is infected with the marri canker, Quambalaria coyrecup ? (3) Are infection rates different for mature or senescent trees and post-logging regrowth? (4) If yes to (3), will the minister please provide full details? Hon HELEN MORTON

AnswerView source ↗

I thank the honourable member for some notice of the question. (1)–(4) The distribution and severity of marri canker in the south west forests is subject to monitoring by the Department of Environment and Conservation. The extent and severity of marri canker has not yet been quantified, although observations indicate it to be widespread. Improved recording of the prevalence of marri canker and the ability to evaluate its impact are anticipated as part of ongoing forest health monitoring, including collaborative work with Murdoch University. The current focus of research is on the nature of the impact from marri canker, epidemiology, the role of environmental stress such as drought, and the taxonomy of Quambalaria species.
(2) What percentage of marri trees in the DEC-managed conservation estate, including nature reserves, national parks and nature conservation parks, is infected with the marri canker, Quambalaria coyrecup ? (3) Are infection rates different for mature or senescent trees and post-logging regrowth? (4) If yes to (3), will the minister please provide full details? Hon HELEN MORTON replied: I thank the honourable member for some notice of the question. (1)–(4) The distribution and severity of marri canker in the south west forests is subject to monitoring by the Department of Environment and Conservation. The extent and severity of marri canker has not yet been quantified, although observations indicate it to be widespread. Improved recording of the prevalence of marri canker and the ability to evaluate its impact are anticipated as part of ongoing forest health monitoring, including collaborative work with Murdoch University. The current focus of research is on the nature of the impact from marri canker, epidemiology, the role of environmental stress such as drought, and the taxonomy of Quambalaria species.
(3) Are infection rates different for mature or senescent trees and post-logging regrowth? (4) If yes to (3), will the minister please provide full details? Hon HELEN MORTON replied: I thank the honourable member for some notice of the question. (1)–(4) The distribution and severity of marri canker in the south west forests is subject to monitoring by the Department of Environment and Conservation. The extent and severity of marri canker has not yet been quantified, although observations indicate it to be widespread. Improved recording of the prevalence of marri canker and the ability to evaluate its impact are anticipated as part of ongoing forest health monitoring, including collaborative work with Murdoch University. The current focus of research is on the nature of the impact from marri canker, epidemiology, the role of environmental stress such as drought, and the taxonomy of Quambalaria species.
(4) If yes to (3), will the minister please provide full details? Hon HELEN MORTON replied: I thank the honourable member for some notice of the question. (1)–(4) The distribution and severity of marri canker in the south west forests is subject to monitoring by the Department of Environment and Conservation. The extent and severity of marri canker has not yet been quantified, although observations indicate it to be widespread. Improved recording of the prevalence of marri canker and the ability to evaluate its impact are anticipated as part of ongoing forest health monitoring, including collaborative work with Murdoch University. The current focus of research is on the nature of the impact from marri canker, epidemiology, the role of environmental stress such as drought, and the taxonomy of Quambalaria species.
Hon HELEN MORTON replied: I thank the honourable member for some notice of the question. (1)–(4) The distribution and severity of marri canker in the south west forests is subject to monitoring by the Department of Environment and Conservation. The extent and severity of marri canker has not yet been quantified, although observations indicate it to be widespread. Improved recording of the prevalence of marri canker and the ability to evaluate its impact are anticipated as part of ongoing forest health monitoring, including collaborative work with Murdoch University. The current focus of research is on the nature of the impact from marri canker, epidemiology, the role of environmental stress such as drought, and the taxonomy of Quambalaria species.
I thank the honourable member for some notice of the question. (1)–(4) The distribution and severity of marri canker in the south west forests is subject to monitoring by the Department of Environment and Conservation. The extent and severity of marri canker has not yet been quantified, although observations indicate it to be widespread. Improved recording of the prevalence of marri canker and the ability to evaluate its impact are anticipated as part of ongoing forest health monitoring, including collaborative work with Murdoch University. The current focus of research is on the nature of the impact from marri canker, epidemiology, the role of environmental stress such as drought, and the taxonomy of Quambalaria species.
(1)–(4) The distribution and severity of marri canker in the south west forests is subject to monitoring by the Department of Environment and Conservation. The extent and severity of marri canker has not yet been quantified, although observations indicate it to be widespread. Improved recording of the prevalence of marri canker and the ability to evaluate its impact are anticipated as part of ongoing forest health monitoring, including collaborative work with Murdoch University. The current focus of research is on the nature of the impact from marri canker, epidemiology, the role of environmental stress such as drought, and the taxonomy of Quambalaria species.

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