More effective surveillance design for horticulture biosecurity threats

biosecurity built on science

More effective surveillance design for Horticulture biosecurity threats

Michael Renton and Maggie Triska*

Plant Biosecurity Cooperative Research Centre

biosecurity built on science

What is the problem?

Optimal surveillance design(what’s the best way to look for something you don’t want to find)

biosecurity built on science

What is the problem?

Surveillance- Early detection for rapid and effective response

- Delineating the extent of an incursion- Proving area freedom to protect trade

- Inform management of established pests

biosecurity built on science

What is the problem?

What is the best design for a surveillance system?- Number of samples (traps etc)- Location of sampling- Frequency of sampling- Movement of traps? - Different methods?- New technologies

New kind of trap New diagnostic methods Flight paths of UAVs Adaptive strategies for automated/mobile traps

biosecurity built on science

What are we doing about it?

PCN

Grape phylloxera

Medfly

biosecurity built on science

PCN

- Nodes Fields

- Movement

Fresh Seed

biosecurity built on science

PCN

Infested DetectedDetected

No Surveillance Surveillance at areas

where detection has occurred and adjacent areas

biosecurity built on science

Grape phylloxera

biosecurity built on science

Grape phylloxera

High virulenceLow virulence

High suitabilityMedium suitability

Low suitability

biosecurity built on science

Medfly

Jarrahdale, WA Kununurra, WA

biosecurity built on science

Medfly

Individual treesOrchards

In/near orchardsEqual effort

Alter density?

biosecurity built on science

How will this research be delivered?

Continue working with our case study partners Engage with new case study partners? Publish methods

- Journal articles- Code and workflows

biosecurity built on science

Who will benefit from this research?

Industry- Potato, grape/wine, fruit- Others

Government Researchers

biosecurity built on science

Benefit for our horticultural industries

Surveillance that is more effective, lower cost, higher confidence

Better justify and target new methods (traps, sampling, diagnostics, automation)

Quicker detection quicker eradication better market access

biosecurity built on science

End-User Advocate’s Perspective

“…The development of models which specify the level of confidence that a pest will be detected will provide a tool to help decision-makers to choose between different strategies, and to optimise the allocation of resources to different surveillance activities. The modellers in this project are working closely with researchers and regulators who understand the biology of the model pests...Project outcomes are expected to assist in the development of surveillance systems which achieve the required outcomes at the least cost. ”

Bernadette Vogelzang (PIRSA)

biosecurity built on science

Future

Biological knowledge Historical spread data

biosecurity built on science

Thank you

PBCRC is established and supported under the Australian Government Cooperative Research Centres Programme

J. Edwards (Ecodev), C. Collins (Vinehealth), S. Broughton (DAFWA), K. Powell (Ecodev), B. White (UWA), J. Wainer (Ecodev), I. Scott (PFNZ), S. Collins (DAFWA), L. Stringer (PFNZ), A. Taylor (DAFWA), Inca Pearce (Vinehealth)

For more information, please email michael.renton@uwa.edu.au or maggie.triska@uwa.edu.au