By David Poulson
Jan Kreuze stood in front of a room full of reporters and began shredding paper.
“This is how a plant attacks a virus,” the researcher explained.
Then he bent over and gathered up the pieces. Reassembling them with a computer program is an easier, cheaper way of getting a picture of the disease than sifting through the genetics of an entire plant, he said. And that could lead to better strategies for fighting it.
Wilmer Perez held a cardboard wheel above his head.
“It doesn’t need batteries or the Internet,” he told the group. And yet the device helps farmers decide when to apply pesticides, dramatically reducing their use.