I was possibly mistaken. Here is the wisdom of our friend DoubleTree posted from the Iowa Whitetials forum on Herbicides:
Dual II Magnum (S-metolachlor) is a residual action herbicide that will help control weeds such as foxtail in corn, soybeans and pod crops.
PREPLANT INCORPORATED OR PREEMERGENCE SURFACE-APPLIED
Quote:
DUAL II Magnum herbicide provides selective weed control in:
Corn * (hybrid, silage, seed, sweet)
Soybeans
Dry common beans (Phaseolus vulgaris)
Snap common beans (yellow and green)
Lima beans
Potatoes
Sugar beets
Sunflowers
Transplanted tomatoes
Rutabagas
Sweet white lupins
Peas (grown for processing)
Fruit trees (bearing and non-bearing)
Second-year or older poplar stoolbeds
Second-year or older transplant or seedling stock of:
White Spruce, Norway Spruce, Black Spruce, White Pine, Jack Pine and Red Pine
Transplanted broccoli, cabbage and cauliflower
Newly planted strawberries
Dual can also be used on sorghum seed that has been "safened" making this an excellent herbicide for a milo/soybean planting or a corn/soybean planting.
Looks like it is safe on Soys, peas, and sunny's! Check the label and ask MoBuck, send him a PM if you have to!