New Tool for Tracking Aphids

Since the Russian Wheat Aphid appeared in Texas, it has cost US wheat growers approximately $200 million a year. But now, the USDA have developed a new tool that will track the aphids. This will allow the USDA to inform farmers and give them guidance on control strategies. The "tool" is a system that uses DNA "barcodes" to identify emerging bio types of the aphids that threaten wheat and other crops. These barcodes will locate and track the new biotypes.

http://phys.org/news/2012-05-tool-tracking-voracious-pest.html