Navigation Links
Research required urgently to control planthopper pests
Date:6/23/2008

Los Baos, Philippines A small insect that has devastated millions of hectares of rice in southern China and Vietnam over the past few yearscausing the loss of thousands of tons of the grain at a crucial time for global productionis the focus of a critical and timely conference this week in the Philippines.

Problems caused by planthoppers, a major type of rice pest that can destroy one-fifth of a harvest, have intensified across Asia in recent years. Major outbreaks in Vietnam in 2007 contributed to recent dramatic rises in the cost of rice, which have threatened to push millions of people deeper into poverty. If not effectively controlled, these pests could hamper rice production and help keep prices high.

Sustained increases in productivity are needed to ensure affordable, plentiful rice for the 3 billion people who depend on it. However, a steady dwindling of funding for public rice research over the past 15 years has stifled research to develop sustainable management practices that help farmers control pests.

A report on the front page of the 18 May New York Times revealed that scientists at the International Rice Research Institute (IRRI) have the know-how to develop rice that can withstand several strains of the devastating pest and integrate resistant varieties with ecological control methods. But, with resources drying up, the research efforts are on hold.

Planthoppers are normally kept in check by naturally occurring biological phenomena, such as other animals that prey on the pest. In the 1970s and 1980s, planthoppers threatened rice intensification programs in Indonesia, Thailand, India, the Solomon Islands, and the Philippines.

IRRI organized the first brown planthopper (BPH) international conference in 1977, bringing together scientists from all rice-producing countries. Activities triggered by this meetingincluding integrated pest management (IPM), reducing unnecessary insecticide use, and breeding BPH-resistant rice varietieshelped keep BPH under control for the next 20 years. However, in the last 5 years, planthopper problems have worsened in several countries, including China, Korea, Japan, and Vietnam. Increasing insecticide resistance is also a concern.

"One of the key problems is overuse of pesticide," said IRRI entomologist and conference organizer K.L. Heong. "As well as destroying the natural predators of planthopper, this also allows the pests to become resistant to pesticides."

Since the first BPH conference, genetics, ecology, and pest management have advanced considerably. Planthoppers are now known to be secondary pests induced by ecological disturbances such as pesticide overuse. To ensure sustainable rice production, research must be directed toward not only pest-resistant rice varieties but also healthy rice-farming ecosystems that provide the natural biological services that control planthoppers.

In the last 30 years, scientific advances have coincided with the development of ecosystem-services frameworks and lessons from breeding resistance, understanding farmer decisions, implementing IPM, and improving communication campaigns. The new knowledge can allow novel approaches and research for more sustainable management. The conference at IRRI, which will bring together leading regional expertsincluding representatives from the United Nations Food and Agriculture Organization, the Association of Southeast Asian Nations, Australia, China, Japan, India, and Bangladeshand policymakers, will be an important starting point.

INTERNATIONAL PLANTHOPPER CONFERENCE
23-25 June 2008
International Rice Research Institute
Los Baos, Philippines

Keynote addresses

Science and politics in planthopper management in Asia
Dr. Peter Kenmore, Chief, Plant Protection Division,
Food and Agriculture Organization, Rome

Ecological engineering for pest management
Professor Geoff Gurr, Professor of Applied Ecology,
Charles Sturt University, Orange, Australia

Topics

  • Planthopper-transmitted virus diseases
  • Migration of planthoppers
  • A new planthopper problem in hybrid rice
  • Genetics and breeding for host-plant resistance to planthoppers
  • Insecticide resistance
  • Farmers' perceptions in planthopper management
  • Factors causing planthopper outbreaks
  • Synthesis of current situation in the region


'/>"/>

Contact: Adam Barclay
a.barclay@cgiar.org
632-580-5600
International Rice Research Institute
Source:Eurekalert

Related biology news :

1. Research shows skeleton to be endocrine organ
2. Newly created cancer stem cells could aid breast cancer research
3. Dominant cholesterol-metabolism ideas challenged by new research
4. Researchers identify proteins involved in new neurodegenerative syndrome
5. Texas researchers and educators head for Antarctica
6. MGH researchers describe new way to identify, evolve novel enzymes
7. University of Pennsylvania researchers develop formula to gauge risk of disease clusters
8. University of Oregon researcher finds that on waters surface, nitric acid is not so tough
9. U of MN researchers discover noninvasive diagnostic tool for brain diseases
10. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
11. Story ideas from the Journal of Lipid Research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/23/2016)... , March 23, 2016 ... Interesse erhöhter Sicherheit Gesichts- und Stimmerkennung mit ... Inc. (NASDAQ: MESG ), ein ... dass das Unternehmen mit SpeechPro zusammenarbeitet, um ... der Finanzdienstleistungsbranche, wird die Möglichkeit angeboten, im ...
(Date:3/21/2016)... Massachusetts , March 22, 2016 ... facial recognition with passcodes for superior security   ... ), a leading provider of secure digital communications services, ... their biometric technology and offer enterprise customers, particularly those ... secure facial recognition and voice authentication within a mobile ...
(Date:3/15/2016)... 2016 --> --> ... Market Research "Digital Door Lock Systems Market - Global Industry ... the global digital door lock systems market in terms of ... is forecast to grow at a CAGR of 31.8% during ... medium enterprises (MSMEs) across the world and high industrial activity ...
Breaking Biology News(10 mins):
(Date:5/27/2016)... ... May 27, 2016 , ... PBI-Gordon Corporation is pleased to ... Products. , In his 15-year career with PBI-Gordon, Dave has served in a wide ... was integral in the development and launch of many of PBI-Gordon’s most successful products. ...
(Date:5/26/2016)... and READING, England ... Indegene ( http://www.indegene.com ), a leading global provider ... science, pharmaceutical and healthcare organisations and TranScrip ( ... scientific support throughout the product lifecycle, today announced ... launch of IntraScience.      (Logo: ...
(Date:5/26/2016)... ... May 26, 2016 , ... FireflySci has ... in leading laboratories all over the globe. Their cute firefly logo has been ... awesome cuvettes, FireflySci makes spectrophotometer calibration standards that never require recalibration. These ...
(Date:5/25/2016)... ... 2016 , ... The American Medical Informatics Association (AMIA) responded ... Coordinator for Health IT (ONC) outlining a measurement approach to interoperability that focuses ... and where it was needed. The organization of health informatics professionals said a ...
Breaking Biology Technology: