In Blanchard, a drone hovers over a small cedar tree and drops tiny, poison pellets to kill the plant.
There are several ways to get rid of red cedars, including prescribed fires and mechanical removal, but using drones to drop herbicide is a different technique. A group of conservationists and lawmakers met in the central part of the state to watch the drones in motion.
In his presentation, Levi Wilson, president of Grass Ag, the Oklahoma company behind the technology, said it is more cost-effective than mechanical removal. Prescribed fires are a popular land management tool, and Wilson said they can be used in combination with the drone system…