❓ A WA parliamentary question addresses the decline of Eucalyptus rudis (flooded gum) and other eucalypt species in the southwest, inquiring about research, causes, severity, resources, and potential links to other species' decline. The Minister acknowledges the issue, identifies likely causes, and outlines limited resources for research but ongoing monitoring.
AnsweredQoN 1093Legislative Council
QuestionView source ↗
(1) Is the minister aware of the plight of the Eucalyptus rudis , the flooded gum, during this past year? (2) Does the minister have any researchers investigating their decline? (3) Does the minister know why they are near death in the south west region from Kojonup to Busselton? (4) Does the minister think this is a serious matter? (5) What resources does the Department of Conservation and Land Management have to research and manage this issue? (6) Does the minister think there is any possibility that the current decline in the Eucalyptus rudis is in any way associated with or linked to the decline we are seeing in a number of other dominant eucalypt species in the south west, including Eucalyptus gomphocephala , the tuart; Corymbia calophylla , the marri; and Eucalyptus wandoo , the wandoo? Hon KIM CHANCE
AnswerView source ↗
I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(2) Does the minister have any researchers investigating their decline? (3) Does the minister know why they are near death in the south west region from Kojonup to Busselton? (4) Does the minister think this is a serious matter? (5) What resources does the Department of Conservation and Land Management have to research and manage this issue? (6) Does the minister think there is any possibility that the current decline in the Eucalyptus rudis is in any way associated with or linked to the decline we are seeing in a number of other dominant eucalypt species in the south west, including Eucalyptus gomphocephala , the tuart; Corymbia calophylla , the marri; and Eucalyptus wandoo , the wandoo? Hon KIM CHANCE replied: I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(3) Does the minister know why they are near death in the south west region from Kojonup to Busselton? (4) Does the minister think this is a serious matter? (5) What resources does the Department of Conservation and Land Management have to research and manage this issue? (6) Does the minister think there is any possibility that the current decline in the Eucalyptus rudis is in any way associated with or linked to the decline we are seeing in a number of other dominant eucalypt species in the south west, including Eucalyptus gomphocephala , the tuart; Corymbia calophylla , the marri; and Eucalyptus wandoo , the wandoo? Hon KIM CHANCE replied: I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(4) Does the minister think this is a serious matter? (5) What resources does the Department of Conservation and Land Management have to research and manage this issue? (6) Does the minister think there is any possibility that the current decline in the Eucalyptus rudis is in any way associated with or linked to the decline we are seeing in a number of other dominant eucalypt species in the south west, including Eucalyptus gomphocephala , the tuart; Corymbia calophylla , the marri; and Eucalyptus wandoo , the wandoo? Hon KIM CHANCE replied: I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(5) What resources does the Department of Conservation and Land Management have to research and manage this issue? (6) Does the minister think there is any possibility that the current decline in the Eucalyptus rudis is in any way associated with or linked to the decline we are seeing in a number of other dominant eucalypt species in the south west, including Eucalyptus gomphocephala , the tuart; Corymbia calophylla , the marri; and Eucalyptus wandoo , the wandoo? Hon KIM CHANCE replied: I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(6) Does the minister think there is any possibility that the current decline in the Eucalyptus rudis is in any way associated with or linked to the decline we are seeing in a number of other dominant eucalypt species in the south west, including Eucalyptus gomphocephala , the tuart; Corymbia calophylla , the marri; and Eucalyptus wandoo , the wandoo? Hon KIM CHANCE replied: I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
Hon KIM CHANCE replied: I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(2) Does the minister have any researchers investigating their decline? (3) Does the minister know why they are near death in the south west region from Kojonup to Busselton? (4) Does the minister think this is a serious matter? (5) What resources does the Department of Conservation and Land Management have to research and manage this issue? (6) Does the minister think there is any possibility that the current decline in the Eucalyptus rudis is in any way associated with or linked to the decline we are seeing in a number of other dominant eucalypt species in the south west, including Eucalyptus gomphocephala , the tuart; Corymbia calophylla , the marri; and Eucalyptus wandoo , the wandoo? Hon KIM CHANCE replied: I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(3) Does the minister know why they are near death in the south west region from Kojonup to Busselton? (4) Does the minister think this is a serious matter? (5) What resources does the Department of Conservation and Land Management have to research and manage this issue? (6) Does the minister think there is any possibility that the current decline in the Eucalyptus rudis is in any way associated with or linked to the decline we are seeing in a number of other dominant eucalypt species in the south west, including Eucalyptus gomphocephala , the tuart; Corymbia calophylla , the marri; and Eucalyptus wandoo , the wandoo? Hon KIM CHANCE replied: I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(4) Does the minister think this is a serious matter? (5) What resources does the Department of Conservation and Land Management have to research and manage this issue? (6) Does the minister think there is any possibility that the current decline in the Eucalyptus rudis is in any way associated with or linked to the decline we are seeing in a number of other dominant eucalypt species in the south west, including Eucalyptus gomphocephala , the tuart; Corymbia calophylla , the marri; and Eucalyptus wandoo , the wandoo? Hon KIM CHANCE replied: I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(5) What resources does the Department of Conservation and Land Management have to research and manage this issue? (6) Does the minister think there is any possibility that the current decline in the Eucalyptus rudis is in any way associated with or linked to the decline we are seeing in a number of other dominant eucalypt species in the south west, including Eucalyptus gomphocephala , the tuart; Corymbia calophylla , the marri; and Eucalyptus wandoo , the wandoo? Hon KIM CHANCE replied: I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(6) Does the minister think there is any possibility that the current decline in the Eucalyptus rudis is in any way associated with or linked to the decline we are seeing in a number of other dominant eucalypt species in the south west, including Eucalyptus gomphocephala , the tuart; Corymbia calophylla , the marri; and Eucalyptus wandoo , the wandoo? Hon KIM CHANCE replied: I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
Hon KIM CHANCE replied: I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
I thank the member for some notice of this question, the answer to which fortunately does not require me to pronounce those generic names. (1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(1) Yes. (2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(2) No research projects are currently being undertaken; however, monitoring is ongoing. (3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(3) The lerp, or Creiis periculosa , a sap-sucking insect, and the flood gum leaf-miner, Perthida species, are responsible for the canopy decline and defoliation. Past serious decline of Eucalyptus rudis has been followed by recovery. The extent of tree death from Kojonup to Busselton is by no means clear. (4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(4) The minister is concerned about any decline of native trees (5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(5) The Department of Conservation and Land Management has limited resources to research and manage this issue. Monitoring is continuing and additional resources may be directed towards the problem if the anticipated recovery does not occur and management intervention is warranted. (6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
(6) In collaboration with the University of Western Australia and Murdoch University, CALM currently has projects aimed at defining the extent and investigating the causes of decline in tuart and wandoo trees in the south west. It is likely that the current series of dry years have predisposed trees to attack by a range of insects and pathogens.
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