[AT] Round-Up resistant weeds

[John Hall]

 Herbicide resistant weeds are nothing new. The ryegrass here on our farm 
became resistant to Hoelon 10+ years ago. We started leaving out the fields 
that were infested and used Gramaxone and Roundup to get rid of it. Finally 
it got where we could plant the whole place in wheat. Then we started 
getting some rygrass. Went to a new herbicide. In it's third year the 
ryegrass has become resistant to it. According to the chemical rep. that 
herbicide was supposed to last 5 years before they saw resistance but have 
seen a lot of it this year. We are faced with leaving the land fallow to try 
to kill the ryegrass or switch back to the original type of herbicide and 
hope the ryegrass we have is a different variety than what we had several 
years back.

John Hall