Tag Archives: pests

The Disruptors

Disruption can mean a lot of things. Dictionary definitions include “a forcible separation” or division into parts. More recently it has come to mean a radical change in industry or business. This brings to mind huge technological innovations. But what if it’s as simple as realising that a handheld device for detecting nitrogen could also be used to gauge how much feed there is in a paddock; that drones can be adapted to measure pest infestations; that communities can proactively track the movement of feral animals.

These are just some of the projects that Cooperative Research Centres (CRCs) are working on that have the capacity to change crop and livestock outcomes in Australia, improve our environment and advance our financial systems.

Data and environment

Mapping pest threats

Invasive animals have long been an issue in Australia. But a program developed by the Invasive Animals CRC called FeralScan is taking advantage of the widespread use of smartphones to combat this problem.

The program involves an app that enables landholders to share information about pest animals and the impacts they cause to improve local management programs.

Peter West, FeralScan project coordinator at the NSW Department of Primary Industries, says the team wouldn’t have thought of a photo-sharing app without genuine community consultation.

The project has been running for six years and can record sightings, impacts and control activities for a wide range of pest species in Australia, including rabbits, foxes, feral cats, cane toads and myna birds. West says that it now has 70,000 records and photographs, and more than 14,000 registered users across the country.

Disruptors

“For regional management of high-impacting pest species, such as wild dogs, what we’re providing is a tool that can help farmers and biosecurity stakeholders detect and respond quickly to pest animal threats,” says West.

“It enables them to either reprioritise where they are going to do control work or to sit down and work with other regional partners: catchment groups, local biosecurity authorities and the broader community.”

The app won the Environment and Energy Minister’s award for a Cleaner Environment in the field of Research and Science excellence at the Banksia Foundation 2016 Awards in December. Recent improvements to the app include the ability to monitor rabbit bio-control agents.Plans for the future include upgrading the technology to alert farmers to nearby pest threats, says West.

Find out more at feralscan.org.au

Revising disaster warnings

Also in the information space, the Bushfire and Natural Hazards CRC (BNHCRC) is investigating reasons we don’t pay attention to or ignore messages that notify us of an impending fire or floods. Researchers are using theories of marketing, crisis communications and advertising to create messaging most likely to assist people to get out of harm’s way.

“The way we personally assess risk has a big impact on how we interpret messages. If I have a higher risk tolerance I will probably underestimate risk,” says Vivienne Tippett, BNHCRC project lead researcher and professor at Queensland University of Technology. “We’ve worked with many emergency services agencies to assist them to reconstruct their messages.”

Instead of an emergency message with a brief heading, followed by the agency name and then a quite technical paragraph about weather conditions and geography, Tippett’s team has worked on moving the key message up to the top and translating it into layperson terms. For example, a message might now say something like: “This is a fast-moving, unpredictable fire in the face of strong winds.”

Tippett’s team is constantly working with emergency services to make sure their findings are made use of as quickly as possible. “The feedback from the community is that yes, they understand it better and they would be more likely to comply” she says.

Find out more at bnhcrc.com.au

AgTech

Measuring plant mass and pests in crops

The Plant Biosecurity CRC is using unmanned aerial systems (UAS or drones) to improve ways to detect pest infestations in vast crops. Project leader Brian McCornack is based at the Kansas State University in the US.

“The driver for using unmanned aerial systems has been in response to a need to improve efficiency [reduce costs and increase time] for surveillance activities over large areas, given limited resources,” says McCornack. “The major game-changer is the affordability of existing UAS technology and sophisticated sensors.”

Disruptors
Unmanned aerial vehicle Credit: Kansas State University

The project is now in its third year and adds an extra layer of data to the current, more traditional system, which relies on a crop consultant making a visual assessment based on a small sample area of land, often from a reduced vantage point.

The international collaboration between the US and the Australian partners at QUT, Queensland Department of Agriculture and Fisheries, and the NSW Department of Primary Industries means the project has access to a wide range of data on species of biosecurity importance.

disruptors
Unmanned aerial system (drone) pilots, Trevor Witt (left) and Dr Jon Kok (right) from the Plant Biosecurity CRC project, discuss data collected from a hyperspectral camera. Credit: Brian McCornack, Kansas State University

The CRC for Spatial Information (CRCSI) has also been working on repurposing an existing gadget, in this case to improve the accuracy of estimating pasture biomass. Currently, graziers use techniques such as taking height measurements or eyeballing to determine how much feed is available to livestock in a paddock. However, such techniques can result in huge variability in estimates of pasture biomass, and often underestimate the feed-on-offer.

Professor David Lamb, leader of the Biomass Business project, says graziers underestimate green pasture biomass by around 50%. There could be a huge potential to improve farm productivity by getting these measures right.

Through case studies conducted on commercial farms in Victoria, Meat and Livestock Australia found that improving feed allocation could increase productivity by 11.1%, or up to $96 per hectare on average, for sheep enterprises, and 9.6% ($52 per hectare) for cattle enterprises.

The CRCSI and Meat and Livestock Australia looked at a number of devices that measure NDVI (the normalised difference vegetation index), like the Trimble Green Seeker® and the Holland Crop Circle®. The data collected by these devices can then be entered into the CRCSI app to provide calibrated estimates of green pasture biomass.

Graziers can also create their own calibrations as they come to understand how accurate, or inaccurate, their own estimates have been. These crowd-sourced calibrations can be shared with other graziers to increase the regional coverage of calibrations for a range of pasture types throughout the year.

Find out more at pbcrc.com.au and crcsi.com.au

Using big data on the farm

In July 2016, the federal government announced funding for a partner project “Accelerating precision agriculture to decision agriculture”. The Data to Decisions Cooperative Research Centre (D2D CRC) has partnered with all 15 rural research and development corporations (RDCs) on the project. 

“The goal of the project is to help producers use big data to make informed on-farm decisions to drive profitability,” says D2D CRC lead Andrew Skinner.

He says that while the project may not provide concrete answers to specific data-related questions, it will provide discussion projects for many issues and concerns that cross different rural industries, such as yield optimisation and input efficiencies. 

Collaboration between the 15 RDCs is a first in Australia and has the potential to reveal information that could shape a gamut of agricultural industries. “Having all the RDCs come together in this way is unique,” says Skinner. 

Global markets

The Capital Markets CRC, in conjunction with industry, has developed a system that allows it to issue and circulate many digital currencies, securely and with very fast processing times – and because it is a first mover in this space, has the potential to be a global disruptor.

Digi.cash is a spinoff of the Capital Markets CRC and is specifically designed for centrally issued money, like national currencies. 

“Essentially we have built the printing press for electronic coins and banknotes, directly suited to issuing national currencies in digital form, as individual electronic coins and banknotes that can be held and passed on to others,” says digi.cash founder Andreas Furche.

A currency in digi.cash’s system is more than a balance entry in an accounts database, it is an actual encrypted note or coin. The act of transfer of an electronic note itself becomes the settlement. This is in contrast to legacy systems, where transaction ledgers are created that require settlement in accounts. So there is no settlement or clearing period.

“We have a advantage globally because we were on the topic relatively early and we have a group of people who have built a lot of banking and stock exchange technologies in the past, so we were able to develop a product which held up to the IT securities standards used in banking right away,” says Furche.

Digi.cash is currently operating with a limit of total funds on issue of $10 million. It is looking to partner with industry players and be in a leading position in the development of the next generation financial system, which CMCRC says will be based on digitised assets.

Find out more at digi.cash

Defence

Passive radar, as developed by the Defence Science and Technology Group (DST), has been around for some time, but is being refined and re-engineered in an environment where radiofrequency energy is much more common.  

As recognition of the disruptive capabilities of this technology, the Passive Radar team at DST was recently accepted into the CSIRO’s innovation accelerator program, ON Accelerate.

Active radar works by sending out a very large blast of energy and listening for reflections of that energy, but at the same time it quickly notifies anyone nearby of the transmitter’s whereabouts.

“Passive radar is the same thing, but we don’t transmit any energy – we take advantage of the energy that is already there,” explains passive radar team member James Palmer.

The technology is being positioned as a complement for active radar. It can be used where there are more stringent regulations around radar spectrum – such as the centre of a city as opposed to an isolated rural area. Radio spectrum is also a finite resource and there is now so much commercial demand that the allocation for Defence is diminishing.

Although the idea of passive radar is not a new one – one of the first radar presentations in the 1930s was a passive radar demonstration – the increase in radiofrequency energy from a variety of sources these days means it is more efficient. For example, signals from digital TV are much more suited to passive radar than analogue TV.

“We are at the point where we are seeing some really positive results and we’ve been developing commercial potential for this technology,” Palmer says. “For a potentially risky job like a radar operator the ability to see what’s around you [without revealing your position], that’s very game changing.”

There is also no need to apply for an expensive spectrum licence. The Australian team is also the first in the world to demonstrate that it can use Pay TV satellites as a viable form of background radiofrequency energy. The company name Silentium Defence Pty Ltd has been registered for the commercial use of the technology.

Find out more at silentiumdefence.com.au

– Penny Pryor

For more CRC discovery, read KnowHow 2017.

You might also enjoy Beat the News with digital footprints.

Rabbits’ viral expansion

The British colonies of the South Pacific called an inter-colonial commission in 1883 to consider matters of common interest. German and French intentions in the Pacific, quarantine and trade issues loomed large. So too did the rabbit, which less than 25 years after its introduction to Australia from Europe was considered “so serious a national evil” it could not be left “to the efforts of individuals for its remedy”.

200115_rabbits_box1 Within five years, Henry Parkes had sponsored an international competition offering the astounding sum of £25,000 to fix the problem. This sparked an ongoing quest for biological controls for Australia’s number one vertebrate pest. Where Louis Pasteur and others had tried and failed, the CSIRO succeeded, twice, with new viral controls: myxoma virus in the 1950s and rabbit haemorrhagic disease virus (RHDV, also known as rabbit calicivirus) in the 1990s. Myxoma received a boost in the 1960s when a new carrier for the virus, the European rabbit flea, was introduced.

The Invasive Animals CRC (IA CRC) is hoping to mirror that success with a new program aimed at improving the impact of RHDV. “When we brought RHDV to Australia, only one strain, a Czech strain, was available to us,” said Dr Brian Cooke, from the IA CRC and the University of Canberra, who has spent his career battling rabbits using biological controls.

“We now understand that another strain – RCV-A1, which doesn’t cause the disease – was already here. This immunises some rabbits, which is why RHDV was less effective in wetter, higher production areas where it is more prevalent. In arid Australia, generally without RCV-A1, around 85% of rabbits died.”

Under the RHD-Boost Program, the IA CRC searched the world for more effective RHDV strains, eventually importing and screening 38 naturally varying strains. After additional tests, six were further investigated, and two virus strains – both from South Korea – demonstrated advantages over the existing Czech strain. One also showed an ability to overcome the partial protection from the problematic RCV-A1 calicivirus.

200115_rabbits_box2 CEO of the CRC, Andreas Glanznig, said the discovery is encouraging but there are more steps to take before a new RHDV strain can be released. “Myxoma and RHDV are the only two examples of wide-scale viral biocontrol for vertebrate animals – ever.”

The rewards are “potentially huge”, he said. “These two viruses have so far delivered more than $70 billion in value to Australia and prevented untold environmental damage.” Myxoma still kills about half the rabbits born in Australia today, at zero cost.

With rabbit numbers on the rise, Australia needs to stay on the front foot. “It is imperative that we have a pipeline of new RHDV strains to keep rabbit biocontrol effective. The alternative will undo decades of management of Australia’s most costly vertebrate pest,” said Glanznig.

Tony Peacock

www.invasiveanimals.com