Blue River Technology See & Spray is a John Deere precision herbicide system that uses computer vision and machine learning to identify individual weeds in real time and apply targeted herbicide only to detected weeds — reducing herbicide use by up to 77% compared to broadcast spraying. Deployed across millions of acres of US corn, soy, and cotton, See & Spray Ultimate mounts on John Deere sprayers and operates at field speed. Blue River Technology was acquired by John Deere in 2017 for $305 million, establishing computer vision-guided precision application as a core John Deere platform technology.