Ashburn, GA, (very close to Heaven!) | Do you mean some weeds resistant to both - yes? I believe that the same field has weeds resistant to both, and it's often the same weed. The thing we really dread is seeing the "super pigweed" that is already resistant to glyphosate and ALS products become resistant to the DNA's.
Do you mean spraying one herbicide automatically selects weeds that are now resistant to both sprays - I don't think so? In cotton we regularly spray Staple (an ALS) + glyphosate, and Palmer Amaranth comes through both. We have been doing this for years. |
resistance hard to figure out
