I'm not sure I agree. We've already seen ALS-inhibitor resistant weeds in the southeast (Revolver resistant Poa and about 15 weeds (including spurge) that are resistant to metsulfuron, the ai in Manor). There are more than 100 weeds resistant to the triazine class of herbicides (Atrazine and simazine resitant Poa, for example) and there have been loads of weeds reported as resistant to Trimec-type 3-way combinations (since they all have a similar MOA). Its hard to say just where this resistance came from, if it was overuse from LCO or not. The latest research pins triazine resistance squarely on overuse in the LCO business, but I suppose the case could be made that these chemistries aren't solely used in LCO. From the activity on this board, it seems like the general attitude in the LCO industry is that "resistance can be a problem, but its someone else's problem and I'm not changing my ways."