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Herbicide

Optill

Group 2 & Group 14

 

Optill herbicide tank-mixed with glyphosate, provides rapid burndown plus early season residual control for cleaner fields in glyphosate-tolerant soybeans.

  • Powered by Kixor, for a fast, complete burndown.
  • Residual activity keeps fields weed-free during early crop development.
  • Multiple modes of action, to help prevent and manage resistant weeds.

Labels & SDS

5 AVAILABLE

Applicable On

Soybeans

Labels & SDS

Additional Resources

 

 

Benefits of Optill

  • The better weed control of Optill plus glyphosate has been shown to increase soybean yield by 2 to 3 bushels per acre, compared to using glyphosate alone.
  • Optill uses Group 14 and Group 2 active ingredients that complement glyphosate to provide a faster, more complete burndown than glyphosate alone.
  • The residual power in Optill is effective into early crop development allowing increased time and flexibility to apply a second, in-crop application of glyphosate.

Performance Trials

Keeping field clean into the early season can increase yield

Weed control in soybeans with glyphosate versus Optill® plus glyphosate plus Merge®.

Comparative control – 30 days after treatment

Product Info & Application Guide

Weed Management

Tank-mixed with glyphosate, Optill complements control of all weeds on the glyphosate label in addition to the following weeds.

 

Weed Class

List of Weeds

Broadleaf Weeds

Broadleaf plantain
Canada fleabane6
Common chickweed
Common ragweed1,2
Dandelion5
Giant ragweed3,6
Lady’s thumb3
Lamb’s quarters1,2
Perennial sow thistle3,8
Prickly lettuce7
Redroot pigweed1,2
Shepherd’s purse
Stinkweed3
Wild buckwheat3
Wild mustard3

Grasses

Barnyard grass4
Crabgrass (large)4
Foxtail (green, yellow)1,4

 

1 Adequate residual control may not be achieved on Group 2-resistant biotypes.

2 Includes control of triazine-resistant biotypes.

3 Burndown only.

4 Burndown and residual suppression only.

5 Suppression only.

6 Includes control of glyphosate-resistant biotypes.

7 Top growth only.

8 Top growth burndown only.

Application Tips

  • Flat fan or similar spray nozzles should be used for application
  • Water Volume should be between 40 - 80 L/ac (100 - 200 L/ha)
  • Denser weed infestation requires the use of higher water volumes
  • Recommended pressure is 275 kPa
  • Rainfastness – 3 hours after application
  • Residual pre-plant applications of Optill must be activated by at least ½ inch of rainfall or sprinkler irrigation prior to weed seedling emergence

When to Apply

Crop

Timing

Soybeans

pre-plant surface application pre-emergence

How Much to Apply

One case will treat 120 acres. Optill is tank mixed with glyphosate for application at the following rates:

 

Timing

 

Application Rates

Early Pre-plant

Optill herbicide + glyphosate*

60 g/ac (147 g/ha)

Water volume

40 - 80 L/ac (100 - 200 L/ha)

Merge adjuvant**

0.40 L/ac (1 L/ha)

 

* See glyphosate label for application rates.

**Addition of Merge adjuvant (not included) is required for optimum activity.

Follow Crops

Following an application of Optill, the crops listed can be planted in the season indicated.

 

Same Season (in case of crop failure1)

Soybeans, Winter wheat2

Next Season

Barley (spring), Corn (field), Dry beans, 

Soybeans,

Wheat (spring, winter)

 

1 A second application of Optill cannot be made in the rescue crop.
2 Winter wheat may be re-planted in cases of crop failure or as a rotational crop 100 days following an Optill application. Soil preparation for re-planting should be no deeper than 10 cm.