best practice management of opuntioid cacti - from principles to...
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Best practice management of opuntioid cacti - from principles to paddock
6th South Australian Weed Conference - 2nd May, 2018
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Australian Government
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Opuntioid cacti- (an abridged) timeline
1788INTRODUCTI
ON
1840ESTABLISHME
NT
1920’sPRICKLY PEAR
COMMISSION
2015+TOOLS
2012WoNS
2009 SA PLAN
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Understanding the problem
ID
Control
Australia wide
Biology
Spread
Learning from
others
• Research
• Field visits
• Meetings & workshops
Brought people and their collective knowledge and experience together
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Designing the tools
Build a knowledge
base
Provide a planning platform
Manage welfare
Management options
Case studiesFurther
information
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• 1500 – 2000 species• All but 1 native to the Americas• No cacti native to Australia
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ID assistance – Genus-level
Austrocylindropuntia Cylindropuntia Opuntia
Austrocylindropuntia
Cylindropuntia
Opuntia
Sheath
NoSheath
NoSheath
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Use the Quick Identification guide to compare key characteristics:
SpinesFlowersFruit
HabitCladodes (stem segments or pads)
ID assistance – Species-level
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Common orhigh-impact species
• Origin• Distribution• Habitat suitability• Features to note• Management considerations
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Other topics covered Impacts of opuntioid cacti
- environmental, agricultural and economic
How cacti reproduce and spread and the management implications of this
List of Scientific and common names of opuntioid cacti
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Provides:- Answers - Principles
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The 6-step planning guide...
EXAMPLE
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Example:
• Why you should monitor• Review questions• Approaches to monitoring
- Photo monitoring points
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Covered in this chapter:• Risk to human health
- Physical
- Psychological
• Risk to wildlife and stock
• Safe management of cacti
• Safe use of equipment when managing cacti
• First Aid specific to cacti
Pages 63-74
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Decision support tools for the selection of appropriate control options
Large cacti with trunks or tree-like form
Shrub-forming cacti with easily detachable cladodes (pads)
Shrub-forming cacti with firmly attached cladodes
(pads)
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Large cacti with trunks or tree-like form
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Shrub-forming cacti with easily detachable cladodes (pads)
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Shrub-forming cacti with firmly attached cladodes (pads)
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Control options:1. Physical control
I. ManualII. MechanicalIII. Disposal
2. Chemical control3. Fire management4. Biological control- Techniques - Situations and species where this method is effective- Equipment
Mechanical removal(machinery)
Manual removal (hand pulling)
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Pages 75-112
Other important topics covered in this chapter: Integrated weed management Weed hygiene Follow-up
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Refining the tools
• Based on current knowledge
• Provides a guide
• Still a need to keep trialing, asking questions & documenting efforts
• SA has been a pioneer- keep up the great work!
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Additional resources
Biosecurity SA stand
• Best practice manual
• Management guide
• Field Identification Guide
Websites
• Dept Primary Industries & Regional Development (DPIRD)- WA
https://www.agric.wa.gov.au/invasive-species/opuntioid-cacti-best-practice-control-manual
• Biosecurity SA
http://www.pir.sa.gov.au/__data/assets/pdf_file/0010/299899/Opuntioid_Cacti_Manual_WEB.pdf
Custom workshops
• Contact Wild Matters
R.J. Chinnock, Feral opuntioid cacti in Australia Part I. Cylindrical-stemmed genera:Austrocylindropuntia,Cylindropuntia and Corynopuntia
H. Rutherford, S. Potter and M.R. Sheehan, Field Identification Guide: Austrocylindropuntia,Cylindropuntia and Opuntia 2nd Edition
Potter, S. and Sheehan, M.R. Opuntioid Cacti Management Guide forAustrocylindropuntia, Cylindropuntia and Opuntia.
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Thankyou
Questions?
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Checklist Summarises each task in
each of the six steps
Allows a quick-glance guide to how to plan and what to do
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Refining the tools?
Traffic light p.9
Guide is based on knowledge current at the time of development- may have evolved already!
Provide a guide- needs to be supplemented by local knowledge (e.g. yourself, someone who has face a similar situation or an expereicned local NRM officer)
Keep talking, trialing, documenting efforts, pushing towards workable and effective solutions
SA has proven to be a pioneer in this space, keep up the good work