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Publication 75S - 2007
Chapter 11. Soybeans

Author: OMAFRA Staff
Creation Date: 15 May 2007
Last Reviewed: 15 May 2007
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Table of Contents

  1. Label Expansion
  2. Rate Correction - Boundary
  3. Weed Control Changes
  4. Boundary
  5. Roundup Transorb
  6. PDF Format
  7. Publication 75, Guide to Weed Control
  8. Related Links
  9. For more information

Label Expansion:

  • Guardian - Now registered for use as a pre-plant burndown application that provides control of annual sow-thistle, common lamb's-quarters, dandelion, prickly lettuce, and suppression of yellow nutsedge.
  • The rate of Assure II in the glyphosate + Assure II tank-mix has changed. See bolded and underlined text in the rates and precaution table below.

Rate Correction:

  • Boundary - Incorrect rate range for the Sencor DF component of Boundary, see bolded and underlined text in the rate and precautions table below.

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Weed Control Rating Changes:

  • Boundary now lists waterhemp on its product label for suppression. Waterhemp control rating for Boundary will now be a bolded "6".
  • glyphosate + Sencor now lists spreading atriplex on its product label for control. Spreading atriplex control rating for Boundary will now be a bolded "8".
Boundary
Trade Name Boundary1 (Dual Magnum Soybean + Sencor DF Soybean)
Active Ingredient s-metolacholor + metribuzin
Formulation EC + WG
Rate per hectare (active)

1.15 to 1.75 L/ha + 0.575 to 0.87 kg/ha
Rate per hectare (product) 1.05 to 1.60 kg/ha + 0.43 to 0.653 kg/ha
Rate per acre (product) 0.46 to 0.7 L/ac + 0.233 to 0.35 kg/ac

Precautions

  • Apply PP or PRE
  • Under preplant uses, a tank-mixture with glyphosate may be used to control emerged weeds.
  • Do NOT apply to coarse textured soils with less than 2% OM.

1 Indicates herbicide is sold as a co-pack under this trade name.

Roundup Transorb
Trade Name Roundup Transorb or Factor or Roundup Weathermax + Assure II + Sure-Mix
Active Ingredient glyphosate + quizalofop-p-ethyl + oil concentrate
Formulation

360g/L or 360g/L or 540g/L or 96g/L
Rate per hectare (active) 0.9 to 1.8 kg/ha+ 0.024 kg/ha + 0.5% v/v
Rate per hectare (product) 2.5 to 5 L/ha or 2.5 to 5 L/ha or 1.67 to 3.33 L/ha + 0.25 L/ha + 5L/ 1,000 L
Rate per acre (product) 1 to 2 L/ac or 1 to 2 L/ac or 0.67 to 1.33 L/ac + 0.1 L/ac + 5 L/ 1,000 L

Precautions

  • For use only with pedigreed (certified) soybean seed designated as "Roundup Ready Soybeans".
  • Assure II is for control od volunteer corn that has the "Roundup Ready" Gene.
  • Apply volunteer corn up to 12 inches in height .
  • Do NOT apply to soybeans within 80 days of harvest.

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Related Links

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For more information:
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