If I use Preen or Trifluralin on my beans that I plan to save seed for next years crop will saved seed germinate next year ?
Bean Seed Germination
Certified GKH Gardening Expert
Do you mean that you used these in the soil of the original plant? Or do you mean that you have sprayed the exposed beans? I would definitely not recommend spraying them.
If you mean that the area had been treated and want to know if the beans from that crop will germinate, the answer is... Mostly, yes. There may be a few that have been sterilized, but it really shouldn't be much more than typical from a plant.