[APWG] NEWS: Dirt Road Maintenance Spreads Invasive Plants

[Olivia Kwong]

http://news.discovery.com/earth/dirt-roads-graders-invasive-plants-110809.html

Dirt Road Maintenance Spreads Invasive Plants
Road graders push seeds around and contribute to the spread of invasive 
plant species, research shows.
By Emily Sohn
Tue Aug 9, 2011 02:30 PM ET

Routine roadwork on rural roads may be aiding the rapid spread of invasive 
species, found a new study.

Road graders used in the study sometimes carried seeds more than 200 times 
farther than the seeds can spread on their own. The findings suggest that, 
for the sake of the environment, maintenance crews might want to consider 
altering the timing or techniques they use to keep dirt and gravel roads 
in shape.

See the link above for the full article text.