Herbicide Recommendations for Beans:
Soil Applied Grass Herbicides

Pub 75: Guide to Weed Control > Beans > Soil Applied Grass Herbicides


Excerpt from 2010-11 Publication 75, Guide to Weed Control, Order this publication

Cover of Publication 75, Guide to Weed ControlTable of Contents

  1. Dual II Magnum
  2. Eptam
  3. Frontier Max
  4. Treflan EC, Rival or Bonanza 400
  5. Beans (Adzuki, Dry, Lima and Snap) Herbicide Rating Table (Table 7-1) (PDF 92 kb)
  6. Other Bean Weed Control Recommendations
  7. Related Links
Dual II Magnum
Trade Name Dual II Magnum
Active Ingredient
s-metolachlor/benoxacor
Formulation
915 g/L
Rate per hectare (active)
1.05 to 1.6 kg/ha
Rate per hectare (product)
1.15 to 1.75 L/ha
Rate per acre (product)
0.46 to 0.7 L/ac

Precautions

  • Apply PPI or PRE on all dry bean (Phaseolus vulgaris) species, except Lima when applied PRE.
  • Apply PPI to minimize the potential for crop injury..
  • Do NOT use on adzuki beans.
  • Do NOT use on muck, peat or high organic matter soils.
  • Use the low rate on coarse-textured soils low in organic matter.
  • Requires rainfall for activation. Rotary hoe if no rainfall occurs within 7 days.
  • Improved control of yellow nutsedge is obtained when DUAL MAGNUM is applied PPI.
  • Use the higher rate for the control of nightshade.
Eptam
Trade Name Eptam
Active Ingredient
EPTC
Formulation
800 g/L
Rate per hectare (active)
3.4 to 4.4 kg/ha
Rate per hectare (product)
4.25 to 5.5 L/ha
Rate per acre (product)
1.7 to 2.2 L/ac

Precautions

  • Apply PPI. Incorporate immediately.
  • Do NOT use on adzuki, lima, otebo beans and small red Mexican beans.
  • If dry weather has preceded the application of EPTC, delay seeding 7-10 days.
  • Temporary injury can occur in the emerging crop.
  • Use the high rate for nut sedge control.
Frontier Max
Trade Name Frontier Max
Active Ingredient
dimethenamid
Formulation
720 g/L
Rate per hectare (active)
544-693 g/ha
Rate per hectare (product)
763-963 mr/h
Rate per acre (product)
302-385 mL/ac

Precautions

  • Apply PPI or PRE.
  • Apply PPI to minimize the potential for crop injury.
  • Do NOT use on adzuki, snap or lima beans
  • Do NOT use on muck, peat or high organic matter soils.
  • Use the low rate on coarse-textured soils low in organic matter.
  • Minimum PPI rate is 960 mL/ha (344 mL/ac).
  • Improved control of yellow nutsedge is obtained when FRONTIER MAX is applied PPI.
  • Use the higher rate of FRONTIER MAX for the control of nightshade and pigweed.
  • Requires rainfall for activation. Rotary hoe if no rainfall occurs within 7 days.
  • If using FRONTIER (900 g/L) PRE, apply at rates of 1.1-1.4 L/ha (0.44 - 0.56 L/ac) and PPI at 1.4 L/ha (0.56 L/ac)
Treflan EC, Rival or Bonanza 400
Trade Name Treflan EC Rival Bonanza 400
Active Ingredient
trifluralin
trifluralin
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. Incorporate as soon as possible. Within 24 hrs.
  • Do NOT use on adzuki, brown, cranberry,otebo, pinto, small Red Mexican and yellow-eye beans.
  • Do NOT exceed 1.2 L/ha (0.48 L/ac) of TREFLAN on medium textured soils and 1.7 L/ha (0.68 L/ac) in heavy textured soils for lima beans.

Related Links

 


For more information:
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E-mail: ag.info.omafra@ontario.ca
Author: OMAFRA Staff
Creation Date: 25 November 2002
Last Reviewed: 17 June 2010