Keep weeds in checkWeed resistance to chemicals will continually increase. It only takes one weed to survive a treatment for it to pass on the genetic makeup to do so to the offspring. This creates more resistant weeds until there is a whole population of resistant weeds. Applying more herbicide will make these weeds even more resistant. This will happen over again even if the chemical formula for the herbicide is altered.
By: Kristine Larson, Agweek