Corporate Banner
Satellite Banner
Food & Beverage Analysis
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Spread of Crop Pests Threatens Global Food Security as Earth Warms

Published: Friday, September 06, 2013
Last Updated: Friday, September 06, 2013
Bookmark and Share
A new study has revealed that global warming is resulting in the spread of crop pests towards the North and South Poles at a rate of nearly 3 km a year.

The study, published in the journal Nature Climate Change and carried out by researchers at the University of Exeter and the University of Oxford, shows a strong relationship between increased global temperatures over the past 50 years and expansion in the range of crop pests.

Currently 10-16% of global crop production is lost to pests. Crop pests include fungi, bacteria, viruses, insects, nematodes, viroids and oomycetes. The diversity of crop pests continues to expand and new strains are continually evolving. Losses of major crops to fungi, and fungi-like microorganisms, amount to enough to feed nearly nine percent of today's global population. The study suggests that these figures will increase further if global temperatures continue to rise as predicted.

The spread of pests is caused by both human activities and natural processes but is thought to be primarily the result of international freight transportation. The study suggests that the warming climate is allowing pests to become established in previously unsuitable regions. For example, warming generally stimulates insect herbivory at higher latitudes as seen in outbreaks of the Mountain pine beetle (Dendroctonus ponderosae) that has destroyed large areas of pine forest in the US Pacific Northwest. In addition, the rice blast fungus which is present in over 80 countries, and has a dramatic effect both on the agricultural economy and ecosystem health, has now moved to wheat. Considered a new disease, wheat blast is sharply reducing wheat yields in Brazil.

Dr Dan Bebber from the University of Exeter said: “If crop pests continue to march polewards as the Earth warms the combined effects of a growing world population and the increased loss of crops to pests will pose a serious threat to global food security.”

Professor Sarah Gurr from the University of Exeter (previously at the University of Oxford) said: “Renewed efforts are required to monitor the spread of crop pests and to control their movement from region to region if we are to halt the relentless destruction of crops across the world in the face of climate change.”

The study used published observations of the distribution of 612 crop pests collected over the past 50 years. It revealed that the movement of pests north and south towards the poles, and into new previously un-colonised regions, corresponds to increased temperatures during that period.


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 3,300+ scientific posters on ePosters
  • More than 4,900+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.


Scientific News
Core-Shell Columns in HPLC: Food Analysis Applications
Explore the most recent applications of core-shell columns in food analysis.
Detecting Pesticides, Nerve Gas With an Electronic Nose
Detecting pesticides and nerve gas in very low concentrations? An international team of researchers led by Ivo Stassen and Rob Ameloot from KU Leuven have made it possible.
Massive Helium Discovery a "Game Changer" for Medical Industry
A new development is gas exploration has yielded the discovery of a huge helium gas field, which could help relieve the dwindling supply.
A “Micro Winery” That Makes Wine Continuously
An American professor, working in collaboration with EPFL, is developing a miniature device for producing wine non-stop and testing different fermentation processes.
Supplement May Switch off Cravings for High-Calorie Foods
Researchers have found that inulin-propionate ester supplement curbs cravings for junk food.
Link Between Canned Food, BPA Exposure Revealed
New Stanford research resolves the debate on the link between canned food and exposure to the hormone-disrupting chemical known as Bisphenol A, or BPA.
Peanut Allergy Prevention Strategy is Nutritionally Safe
Early-life peanut consumption does not affect duration of breastfeeding or children’s growth and nutrition.
ASMS 2016: Targeting Mass Spectrometry Tools for the Masses
The expanding application range of MS in life sciences, food, energy, and health sciences research was highlighted at this year's ASMS meeting in San Antonio, Texas.
A Future Tool for Medicine, Food Safety
A new type of electronic sensor that might be used to quickly detect and classify bacteria for medical diagnostics and food safety has passed a key hurdle by distinguishing between dead and living bacteria cells.
Local Microbes Can Predict Wine’s Chemical Profile
Regionally distinctive groups of bacteria and fungi, associated with local climate and environmental conditions, may leave a very specific “fingerprint” on a wine’s chemical composition, report University of California, Davis, researchers who collaborated on a new study with two Napa Valley wineries.
SELECTBIO

SELECTBIO Market Reports
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
3,300+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,900+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!