Herbicide Recommendations for Soybeans: Soil Applied Grass Herbicides

Pub 75: Guide to Weed Control > Soybeans > Herbicide Recommendations for Soybeans: Soil Applied Grass Herbicides

Excerpt from 2008 Chapter 11, Publication 75, Guide to Weed Control, Order this publication

Precautions

Apply PP, PPI or PRE.
Can be tank-mixed with glyphosate or Gramoxone for PP burndown of emerged annual and perennial weeds, see Chapter 6, for more information.
Control of yellow nutsedge is obtained when Dual II Magnum is applied PPI.
Optimal control of nightshade is obtained when Dual II Magnum is applied PRE.
Do NOT use on muck, peat or high organic matter soils.
Use the higher rate of (Dual II Magnum) for heavier weed populations.
Incorporation depth should not exceed 10 cm.

Precautions

Apply PP, PPI or PRE
Can be tank-mixed with glyphosate or Gramoxone for PP burndown of emerged annual and perennial weeds, see Chapter 6, for more information.
Use higher rate of Frontier for the control of nightshade and pigweed (PPI or PRE only).
Control of nutsedge is achieved by applying Frontier preplant incorporated.
Minimum rate for preplant incorporated treatments is 0.5 L/ac.
Incorporation depth should not exceed 10 cm.

**Treflan or Rival or Bonanza**
Trade Name	Treflan	or Rival	or Bonanza
Active Ingredient	trifluralin	or trifluralin	or trifluralin
Formulation	480 g/L	500 g/L	400 g/L
Rate per hectare (active)	0.6 to 1.155 kg/ha	0.6 to 1.155 kg/ha	0.6 to 1.155 kg/ha
Rate per hectare (product)	1.25 to 2.4 L/ha	1.2 to 2.3 L/ha	1.5 to 2.75 L/ha
Rate per acre (product)	0.5 to 0.96 L/ac	0.48 to 0.92 L/ac	0.6 to 1.1 L/ac

Precautions

Apply PPI.
Conduct the first incorporation as soon as possible after application, may be delayed up to 8-24 hr. Second incorporation is recommended anytime before planting.