The field appears as a checkerboard: thriving green crops beside squares of shriveling beige stalks.
This was not a farmer’s bad luck. Instead the field was intentionally sprayed with 13 different weed killers to show their effects on various crops as well as the consequences of herbicides that drift from their intended target.
“Would a farmer do this to a field? Absolutely not,” said Harold Watters, an agronomy field specialist with Ohio State University Extension, the outreach arm of the College of Food, Agricultural, and Environmental Sciences (CFAES) at The Ohio State University.
“The purpose is to share what can happen when things don’t go as planned.”
For farmers, weeds are an increasingly vexing problem as the herbicides that used to kill them no longer work. Just about every year at least one weed in Ohio is shown to survive a herbicide that used to destroy it, Watters said.
The increased use of a herbicide often causes the target weed to become resistant to it, in much the same way that increased use of antibiotics has led to some of them no longer being effective against certain bacterial infections.… Continue readingRead More »