Skip to main content
 
 
“Boundary
A One-Two Punch for Weed Resistance Management

A combination of the active ingredients metribuzin and S-metolachlor, Boundary® 6.5 EC herbicide delivers hard-hitting preemergence control and works in a system of overlapping residuals, giving you the flexibility to knock out tough weeds.

Overview

Boundary 6.5 EC Herbicide

When applied as a preemergence herbicide, Boundary 6.5 EC fits under any trait platform and offers residual control of up to five weeks. It delivers proven protection against 32 broadleaf weeds and early-season grass weeds, and is effective as part of an integrated weed management plan.

Active Ingredients:

S-metolachlor, Metribuzin

Resistance Management:

Derived From:

Beneficial Substances:

Loading Label Details

States
Crops
Weeds, Pests & Diseases
x
Current Label States Previous Label States
      Current Label Crops Previous Label Crops
            Special Labels
            Worker Safety
            x
            Current Label States Previous Label States
                Current Label Crops Previous Label Crops

                      Restricted Entry Interval:

                      PPE required for Applicators, Mixers or Loaders:

                      PPE required for Early-Entry Workers:

                      Composition

                        Please select a state to see Special Labels

                          Special Labels for Rhode Island Change State

                          Benefits

                          • Fits under any trait platform, giving growers greater flexibility and options in their integrated weed management plans
                          • Extends the post-application window up to 5 weeks after planting, helping to keep fields cleaner longer than other soybean herbicides and allowing for more timely post-emergence applications
                          • Is available as a dicamba herbicide tank-mix option in soybeans, expanding the options for weed resistance management
                          • Removes the competition of problem grass and broadleaf weeds, to help preserve yields
                          • Contains 2 non-ALS inhibiting, non-glyphosate and non-PPO inhibiting chemistries for managing tough grass and broadleaf weeds
                          • Protects yields by offering early-season residual management, preventing weeds from competing with young plants for moisture and nutrients
                          • Can be followed by Tavium® Plus VaporGrip® Technology, Flexstar® GT 3.5, Prefix® or Sequence® herbicides
                           

                          Performance

                          Resistance Management Flexibility Tool

                          Flexible Weed Resistance Management from Syngenta

                          Boundary 6.5 EC is just one option available within the Syngenta soybean herbicide portfolio, the most diverse and effective selection of weed management products available. No matter which soybean seed trait you choose, the Syngenta portfolio includes a herbicide that will fit with your integrated weed management plan.

                          Start planning the soybean herbicide program that matches your trait with our new soybean herbicide program planning tool.

                          Explore Your Options

                          Dicamba Herbicide Tank-Mix Option

                          Boundary 6.5 EC is one of several Syngenta herbicide tank-mix options, including with Tavium when applied preemergence. Tank mixing with dicamba provides you with additional weed management options and weed resistance management benefits. Dicamba should be used as part of a two-pass program to be effective and sustainable.

                          Keep Fields Clean With Boundary 6.5 EC

                          carousel image alt tag

                          A preemergence herbicide with multiple effective sites of action, such as Boundary 6.5 EC, can protect young crops when they’re most vulnerable from weed competition. Additionally, that early-season control reduces the pressure placed on your post-emergence application, helping to reduce weed escapes. See the difference in these Minnesota soybeans treated with Boundary 6.5 EC on the right and Zidua® Pro on the left.

                          carousel image alt tag

                          Boundary 6.5 EC contains two effective sites of action against weeds that have shown resistance to glyphosate, PPO- and ALS-inhibitor herbicides, such as Amaranthus species. See the weed management advantage of Boundary 6.5 EC in these soybeans, treated with Warrant® on the left and Boundary 6.5 EC on the right.

                          carousel image alt tag

                          As weed resistance management continues to grow in importance, choose a full-season herbicide program with preemergence and post-emergence applications for overlapping residuals that keep rows clean, as seen in these soybeans.

                          carousel image alt tag

                          A combination of metribuzin and S-metolachlor, Boundary 6.5 EC features two effective sites of action to knock out early-season weed competition with a one-two punch of active ingredients. On the left, a trial of Valor® shows some remaining weed pressure, while the plot on the right, treated with Boundary 6.5 EC, is clean.

                           
                           
                           
                           

                          Videos

                           
                           

                          Testimonials

                          Matt Dop standing in field treated with Boundary 6.5 EC herbicide

                          "I recommend a full rate preemergence on the first pass, such as Boundary 6.5 EC herbicide, and on the second pass, I recommend Flexstar GT 3.5 herbicide. Not only does it give us really good burndown on the weeds, but it also gives us a few weeks of residual."

                          Lance Salzmann standing in field treated with pre emergent herbicide

                          "Most of the applications of Boundary 6.5 EC herbicide went on a week or two before planting, and that really helped us to stay clean until we made that post-emergent herbicide application."

                           

                           

                          Testimonials

                          Mark Forsyth
                          Grower
                          Charles City, IA

                          Mark Forsyth

                          “A pre-emergence herbicide like Boundary 6.5 EC is important. A rescue treatment is not going to cut it anymore.”

                          Matt Dop
                          Retail Sales Agronomist
                          Monroe, IA

                          Matt Dop

                          “We used Boundary 6.5 EC herbicide followed by Flexstar GT 3.5 herbicide on my soybean acres last year. I had a very successful year as far as the weed control goes.”

                           

                           

                           

                           

                          Want to talk?

                          Have questions about this product or need guidance for your operation? Your local Syngenta representative can help you choose the right solution and answer your agronomic questions.

                          Find your local Syngenta Rep
                           

                          Ready to buy?

                          Ready to get started? Connect with a Syngenta retailer near you to purchase this product and get the local support you need for a successful season.

                          Find your local Retailer
                          CP Products