Precision technology outpaces farmer adoption

The first spot-spraying “green-on-brown” sprayers were rolling into test plots 30 years ago, in the mid-1990s. So why isn’t every Midwestern cornfield crawling with self-driving sprayers today, spritzing minute amounts of finely calibrated herbicide mixes onto individual weeds?Research and development of target spray technology has raced miles ahead of the realities in the field. In some cases, companies and start-ups are developing second- and third-generation target and robot