Thursday, February 24, 2011

Genetic tests show fire ants using United States as springboard for invading ...

By Randolph E. Schmid
(CP)

2 hours ago
WASHINGTON — Even as the United States battles the spread of fire ants within its borders, this country is serving as the jumping-off point for the pest to invade other nations.The aggressive, stinging ants arrived from South America and got a foothold in the United States in the 1930s, gradually spreading across the South. Now, researchers say, the United States has become the springboard in the last 20 years for the ants to invade such distant

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