WEED CONTROL

Herbicide Residue

Banvel/SGF (dicamba) at 1 to 2 lb/A (1 to 2 qt/A Banvel, 2 to 4
qt/A SGF) applied for perennial weed control may remain as a
residue in the soil. Rotational crop restrictions for Banvel are
found on page 64 of the 1996 North Dakota Weed Control Guide in
the table, "Rotation Restrictions for Crops Grown in North
Dakota". For soybeans and other sensitive crops, injury may occur
if the interval between application and planting is less than 45
days per 0.5 lb/A of dicamba (1 pt/A Banvel or 2 pt/A SGF) used,
excluding days when ground is frozen. Research at NDSU indicated
that dicamba at 1 lb/A applied in late September caused some
visible injury to wheat and barley planted the following spring,
but effect on yield was minimal. Banvel/SGF at 0.5 lb/A applied
the previous fall prevented seed production in sunflower. The
approximate ranking of crops from most to least tolerant is corn,
barley, wheat, oat, potato, buckwheat, soybean, dry edible bean,
sunflower, flax and sugarbeet.