Get all the facts before concluding. When confronted with possible herbicide injury, one of the most important items on your "to-do" list is:  Do Not Jump to Conclusions.  Many other factors can cause plant injury symptoms that mimic herbicide injury.  This checklist can help guide you through a site visit.  Suspected Herbicide Injury Site Visit Check List

If, after completing a site visit, you suspect herbicide injury from off-target movement (such as: drift) or off-label uses, the next step is to notify your local NC Department of Agriculture pesticide inspector (or similar agency representatives for your locale).  They are trained to respond to such events.