HOME >> BIOLOGY >> NEWS
Weevils Wipe Out Killer Weeds In Papua New Guinea

In a move that could save the environment, village economies and even human lives, CSIRO scientists have wiped out 20 square kilometres of a noxious water weed infesting the Sepik River in PNG.

Researchers from CSIRO Entomology used tiny weevils as biological control agents to control a massive outbreak of the exotic Latin American weed, water hyacinth, that was threatening the river, the villages which depend on it and the natural environment of PNG.

The project, funded by AusAID, is a fresh triumph for Australia's "six-legged ambassadors" - tiny benign insects now saving crops, family livelihoods, industries and ecosystems around the Asia Pacific region.

Water hyacinth infestations clogging up the Sepik River wetlands were causing great hardship to people using the rivers and streams to move around the country - like a road network.

According to Mr Mic Julien from CSIRO Entomology, the release of biological control agents such as weevils dramatically reduced the areas covered by the weed.

"Over the past five years, we have released 450,000 weevils and reduced infestations from 27 square kilometres to just seven," Mr Julien says.

The Sepik River system is a major waterway in PNG. Water hyacinth was first recorded in the Lower Sepik River floodplain in 1984 and spread quickly, infesting many lagoons and hundreds of kilometres of river banks.

By 1991, large water hyacinth infestations were severely disrupting the lifestyle of villagers from the Middle and Lower Sepik who could only reach gardens, markets and fishing by using the waterways.

These infestations also resulted in the deaths of several people who were unable to reach essential services in time for life-saving treatments.

The government of PNG realised that it was neither desirable or practical to control the weed with herbicides and so alternative control methods were so
'"/>

Contact: Mic Julien
mic.julien@ento.csiro.au
61-7-3214-2805
CSIRO Australia
14-Jul-1998


Page: 1 2

Related biology news :

1. Killer virus
2. Tracking A Killers Progression
3. Killer Whales Have Begun Preying On Sea Otters, Causing Disruption Of Coastal Ecosystems In Western Alaska
4. USGS Finds Sea Otters At Risk From Killer Whales In A Changing Ocean
5. French Researchers Breed Flightless Ladybirds As Pest-Killers
6. University Of Kentucky Researcher Awarded MERIT Extension For Study Of Third World Killer
7. How A Common Protein Becomes A Cancer Killer
8. Virginia Tech Scientists Study Killer Molecules
9. Weeds in disturbed areas may be source of more medically important compounds than plants in tropical rainforests
10. Promiscuous Plants May Spread Genes To Weeds
11. Genetically-Altered Crops Can Produce Tough, Hard-To-Kill Weeds

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Weevils Wipe Out Killer Weeds Papua New Guinea

(Date:8/28/2014)... Society of America (ESA) is pleased to announce the ... of the Society. Honorary Membership acknowledges those who have ... involvement in the affairs of the Society that has ... selected by the ESA Governing Board and then voted ... honored at the Awards Ceremony at Entomology 2014, ESA,s ...
(Date:8/28/2014)... is available in German . ... owes its name to a striking pattern of blue stripes ... cells, reflective silvery cells, and yellow cells emerge during growth ... as a multilayered mosaic to compose the characteristic colour pattern. ... types have to interact to form proper stripes, the embryonic ...
(Date:8/28/2014)... A Mayo Clinic researcher and his collaborators have ... and enhance the process of re-engineering cells for biomedical ... network biology methods to aid stem cell engineering. Details ... are described in two back-to-back papers in the journal ... broad range of uses for all types of cell-based ...
Breaking Biology News(10 mins):Fred Baxendale selected as Honorary Member of the Entomological Society of America 2How the zebrafish gets its stripes 2How the zebrafish gets its stripes 3New tool aids stem cell engineering for medical research 2
(Date:8/29/2014)... SAN DIEGO, Aug. 29, 2014  Pfenex Inc. ... in the development of high-value and difficult to ... business update and reported financial results for the ... "With the successful completion of our initial public ... advance our biosimilar product candidates, derived from our ...
(Date:8/29/2014)... are based on electrons, but one of the most ... i.e. circuits based on light (photons) instead of electrons. ... a stream of single photons and control their direction. ... attempts to achieve this control, but now scientists at ... steady stream of photons emitted one at a time ...
(Date:8/29/2014)... (PRWEB) August 29, 2014 The ... $5.6 billion in 2019. It is expected to ... to 2019, and was valued at $1.8 billion ... by Transparency Market Research. , For more information ... http://www.transparencymarketresearch.com/companion-diagnostics-market.html . , The research report, titled “Companion ...
(Date:8/29/2014)... 29, 2014 According to a new market ... global orthobiologics market was valued at USD 3,754.6 million in ... 5,519.9million in 2019at a CAGR of 5.9% from 2013 to ... and above is afflicted by bone and joint disorders, and ... 2020. This has and will continue to increase the demand ...
Breaking Biology Technology:Pfenex Reports Second Quarter 2014 Results and Provides Business Update 2Pfenex Reports Second Quarter 2014 Results and Provides Business Update 3Pfenex Reports Second Quarter 2014 Results and Provides Business Update 4Pfenex Reports Second Quarter 2014 Results and Provides Business Update 5Pfenex Reports Second Quarter 2014 Results and Provides Business Update 6Pfenex Reports Second Quarter 2014 Results and Provides Business Update 7Pfenex Reports Second Quarter 2014 Results and Provides Business Update 8Breakthrough in light sources for new quantum technology 2Companion Diagnostics Market to Hit $5.6 Billion in 2019: Transparency Market Research 2Companion Diagnostics Market to Hit $5.6 Billion in 2019: Transparency Market Research 3Global Orthobiologics Market to Reach $5,519.9 Million by 2019: Transparency Market Research 2Global Orthobiologics Market to Reach $5,519.9 Million by 2019: Transparency Market Research 3
Cached News: