Dupont

(via Flickr/Dodo-Bird)

DuPont’s Pioneer Hi-Bred International is suing Monsanto for allegedly violating DuPont patents related to corn seed production.

In a lawsuit filed Tuesday in federal court, the Iowa-based seed company accuses Monsanto of using a patented technique developed by DuPont to enhance corn seed germination. The technique involves defoliating the corn plants with herbicides between pollination and harvest.

DuPont alleges that Monsanto has been using this defoliation technique at its research site in Constantine, Michigan.