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:10/15/2014)... Gauß-Allianz has admitted Johannes Gutenberg University Mainz (JGU) ... science hub continues to maintain a significant nationwide ... , "The acceptance of Johannes Gutenberg University Mainz ... a milestone in the national and international competition ... state of Rhineland-Palatinate can be proud that Mainz ...
(Date:10/15/2014)... SHELTON, Conn. , Oct. 15, 2014 NXT-ID, Inc. ... a biometric authentication company focused on the growing mobile commerce market ... NASDAQ MarketSite in Times Square on Monday October 13 th . ... with CTO David Tunnel and angel investor Mr. ... Gino Pereira , CEO of NXT-ID thanked his investors and employees ...
(Date:10/14/2014)... – Like discriminating thieves, prostate cancer tumors scavenge and ... body. But such avarice may be a fatal weakness. ... way to kill prostate cancer cells by delivering a ... destroys the diseased cells brimming with the mineral, leaving ... two drugs already commercially available for other uses, could ...
Breaking Biology News(10 mins):Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 3Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 3Prostate cancer's penchant for copper may be a fatal flaw 2
(Date:10/19/2014)... The report "Chocolate, Cocoa Beans, Lecithin, Sugar and ... and Forecast (2011 - 2016)," analyzes the chocolate ... the major market drivers, restraints, and opportunities for the ... The global chocolate market is expected to grow from ... an estimated CAGR of 2.7% from 2011 to 2016. ...
(Date:10/18/2014)... The “Human Insulin Market- by Product ... Modern Human Insulin (Rapid Acting, Long Acting, Premixed)], ... Others) - Forecast to 2018” provides a detailed ... current market trends, and strategies impacting the global ... forecasts of the revenue and share analysis. , ...
(Date:10/18/2014)... 18, 2014 The Asia-Pacific hardware encryption ... in Asia-Pacific with analysis and forecast of revenue. This ... expected to reach $51,362.6 million by 2018, at a ... through the TOC of the Asia-Pacific hardware encryption market ... provided. This also provides a glimpse of the segmentation ...
(Date:10/18/2014)... According to a new market research ... - Global Trends & Forecasts up till 2017”, hydraulic ... 2011. This value is expected to increase from $40 ... 10% CAGR during the same period. North America is ... in terms of hydraulic horse power supplied by the ...
Breaking Biology Technology:Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 2Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 3Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 4Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 2Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 3Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 4Medical Human Insulin Market Is Expected to Reach $42 billion by 2019 - New Research Report by MarketsandMarkets 5The Asia-Pacific hardware encryption display market is expected to reach $51,362.6 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific hardware encryption display market is expected to reach $51,362.6 million by 2018 - New Report by MicroMarket Monitor 3Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 2Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 3Hydraulic Fracturing Market Projected To Reach $64 Billion by 2017 - New Report by MarketsandMarkets 4
Cached News: