e360 digest


03 Mar 2011: Control of Invasive Shrub with
Asian Beetles Yields Huge Water Savings

Researchers say an Asian beetle may help control the spread of tamarisk, an invasive Eurasian shrub responsible for water loss across the southwestern United States. After allowing the tamarisk leaf beetle
Tamarisk leaf beetle
Dan Bean, Colorado Dept. of Agriculture
The tamarisk leaf beetle
to devour leaves for one year in a 4,500-acre area dominated by the shrub in the Great Basin of Nevada, scientists from the University of California Santa Barbara (UCSB) found that about 2,500 acre-feet of water that would have otherwise been consumed by the plant remained in the ground. “This is roughly the same amount of water that would be used to irrigate 1,000 agricultural acres in a year,” said Tom Dudley, a research biologist at UCSB. And at about $185 per acre-foot, this amount of water could provide annual water needs for 5,000 to 10,000 households, he said. Introduced into North America more than a century ago, tamarisk, also known as saltcedar, now occupies more than a million acres of riverside habitat, displacing native trees, degrading habitat quality for wildlife and exacerbating erosion and sedimentation. The shrub is also flammable, which increases the risks of wildfire.


Yale
Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies
.

SEARCH e360



Donate to Yale Environment 360
Yale Environment 360 Newsletter

CONNECT


ABOUT

About e360
Contact
Submission Guidelines
Reprints

E360 en Español

Universia partnership
Yale Environment 360 articles are now available in Spanish and Portuguese on Universia, the online educational network.
Visit the site.


DEPARTMENTS

Opinion
Reports
Analysis
Interviews
Forums
e360 Digest
Podcasts
Video Reports

TOPICS

Biodiversity
Business & Innovation
Climate
Energy
Forests
Oceans
Policy & Politics
Pollution & Health
Science & Technology
Sustainability
Urbanization
Water

REGIONS

Antarctica and the Arctic
Africa
Asia
Australia
Central & South America
Europe
Middle East
North America

e360 PHOTO GALLERY

“Cuba
Photographer Robert Wintner documents the exquisite beauty and biodiversity of Cuba’s unspoiled coral reefs.
View the gallery.

e360 MOBILE

Mobile
The latest
from Yale
Environment 360
is now available for mobile devices at e360.yale.edu/mobile.

e360 VIDEO

Warriors of Qiugang
The Warriors of Qiugang, a Yale Environment 360 video, chronicles a Chinese village’s fight against a polluting chemical plant. It was nominated for a 2011 Academy Award for Best Documentary Short.
Watch the video.


header image
Top Image: aerial view of Iceland. © Google & TerraMetrics.

e360 SPECIAL REPORT

“Tainted
A three-part series Tainted Harvest looks at the soil pollution crisis in China, the threat it poses to the food supply, and the complexity of any cleanup.
Read the series.

OF INTEREST



Yale