the competitive world of weeds

Is global warming fueling a new generation of more aggressive weeds? According to recent research, the answer may be yes.

“Weeds are survivors,” said Lee Van Wychen, director of science policy for the Weed Science Society of America. “They can fill various niches and thrive under a wide range of conditions. While we have about 45 major crops in the U.S., there are more than 400 species of different weeds associated with those crops.”

“There is always another weed species ready to become a major competitor with a crop if growing conditions change, such as an increase in carbon dioxide levels.”

Weed Science Society of America, 25 Mar 2012