Does Tordon RTU Kill Grass? (5 Expert Tips For Woodworkers)

As a seasoned woodworker and someone who’s spent countless hours in the field preparing firewood and managing timber, I’ve come to appreciate the delicate balance between efficient land management and environmental responsibility. One question I frequently encounter, especially when dealing with invasive species or unwanted vegetation around valuable trees, is: “Does Tordon RTU kill grass?” It’s a valid concern, as preserving desirable plant life is just as important as eliminating the undesirable. This guide isn’t just about answering that question; it’s about understanding the nuances of using Tordon RTU responsibly, especially for those of us involved in wood processing, logging, and firewood preparation.

Does Tordon RTU Kill Grass? 5 Expert Tips for Woodworkers

Tordon RTU, a ready-to-use herbicide, is a powerful tool for controlling unwanted trees and brush. Its active ingredient, triclopyr, works by disrupting plant growth, leading to its eventual death. However, its effectiveness can also pose a risk to non-target plants, including grass. The short answer is yes, Tordon RTU can kill grass. But the extent of the damage depends on several factors. Let’s dive into these factors and explore how to use Tordon RTU effectively and responsibly.

1. Understanding Tordon RTU and Its Mechanism of Action

Before we delve into the specifics of grass control, let’s understand what Tordon RTU is and how it works. Tordon RTU is a systemic herbicide, meaning it’s absorbed by the plant and transported throughout its system. This makes it particularly effective against woody plants and stubborn broadleaf weeds.

Active Ingredient: Triclopyr, a synthetic auxin that mimics plant hormones, causing uncontrolled growth and ultimately, death.
Application Methods: Primarily used as a cut-stump treatment, basal bark application, or frill application. These methods target specific plants, minimizing the risk of overspray.
Target Plants: Effective on a wide range of woody plants, including buckthorn, honeysuckle, multiflora rose, and various tree species.

My Experience: I recall a project where we were clearing a section of land heavily infested with buckthorn to create a sustainable firewood harvesting area. We used the cut-stump method with Tordon RTU to prevent regrowth. While incredibly effective on the buckthorn, we noticed some surrounding grass was affected where the herbicide had inadvertently dripped or splashed. This experience highlighted the importance of precise application.

2. Factors Influencing Grass Damage

Several factors determine whether Tordon RTU will kill grass and to what extent:

Application Method: This is the most crucial factor. Direct application methods like cut-stump treatment are less likely to affect grass than foliar sprays.
Dosage: Over-application significantly increases the risk of damage to non-target plants. Always follow the manufacturer’s instructions carefully.
Proximity: The closer the grass is to the application site, the higher the risk of exposure.
Grass Species: Some grass species are more susceptible to triclopyr than others. Fine fescues, for example, are generally more sensitive than Bermuda grass.
Environmental Conditions: Windy conditions can cause herbicide drift, leading to unintended exposure of grass. Rain shortly after application can wash the herbicide off the target plant and into the soil, potentially affecting nearby grass.

Case Study: Minimizing Drift

I once worked on a project near a sensitive wetland area. We had to remove several invasive trees, but we were extremely cautious about herbicide drift. We used a combination of techniques:

Cut-Stump Treatment: As the primary method.
Shielded Applicators: To prevent overspray.
Wind Monitoring: We only applied the herbicide on calm days with minimal wind.
Dye Markers: To visually track the application and ensure accuracy.

This approach significantly reduced the risk of harming non-target plants, including the grass surrounding the treatment areas.

3. Identifying Grass Types and Their Sensitivity

Understanding the types of grass in your work area is crucial. Different species react differently to herbicides.

Cool-Season Grasses: These include Kentucky bluegrass, perennial ryegrass, and fescues. They are generally more sensitive to herbicides, including triclopyr, especially during their active growth periods in spring and fall.
Warm-Season Grasses: These include Bermuda grass, Zoysia grass, and St. Augustine grass. They are generally more tolerant to herbicides, but still susceptible to damage from overspray or high concentrations.

Example: If you’re working in an area with primarily cool-season grasses, you’ll need to be extra cautious to avoid damaging them. You might consider alternative methods for controlling unwanted vegetation or use a lower concentration of Tordon RTU.

4. Safe and Responsible Application Techniques

The key to using Tordon RTU without killing grass is to apply it safely and responsibly. Here are some tips:

Cut-Stump Treatment: This is my preferred method for minimizing grass damage. Cut the tree or brush close to the ground and immediately apply Tordon RTU to the freshly cut stump. This prevents regrowth and minimizes the risk of herbicide runoff. I typically use a small paintbrush or a squirt bottle for precise application.
Basal Bark Application: This involves applying the herbicide to the lower 12-18 inches of the trunk. This method is effective on smaller trees and can be less damaging to grass than foliar sprays. However, it’s crucial to use a bark-penetrating adjuvant to ensure the herbicide is absorbed effectively.
Frill Application: This involves making overlapping cuts around the base of the tree and applying the herbicide into the cuts. This method is effective on larger trees and can be less damaging to grass than foliar sprays.
Avoid Foliar Sprays: Foliar sprays are the most likely to damage grass, as they can easily drift and affect non-target plants. If you must use a foliar spray, do so on a calm day and use a shielded applicator to prevent overspray.
Use a Dye Marker: Adding a dye marker to the herbicide mixture helps you see where you’ve applied it, preventing over-application and ensuring you don’t miss any spots.
Read the Label: Always read and follow the manufacturer’s instructions carefully. The label contains important information about application rates, safety precautions, and environmental considerations.

Tool Specifications:

Chainsaw: I use a Stihl MS 261 C-M for felling smaller trees and brush. Its lightweight design and powerful engine make it ideal for this type of work.
Paintbrush: A small, inexpensive paintbrush is perfect for applying Tordon RTU to cut stumps.
Squirt Bottle: A small squirt bottle can also be used for precise application.
Shielded Applicator: If using a foliar spray, a shielded applicator is essential to prevent overspray.

Safety Considerations:

Wear Protective Gear: Always wear gloves, eye protection, and long sleeves when handling Tordon RTU.
Avoid Contact with Skin and Eyes: If Tordon RTU comes into contact with your skin or eyes, wash immediately with plenty of water.
Keep Away from Children and Pets: Store Tordon RTU in a secure location out of reach of children and pets.
Dispose of Properly: Dispose of empty containers according to local regulations.

Personalized Story: I remember a time when I was working on a project with a team of inexperienced volunteers. Despite my warnings, one of them accidentally sprayed Tordon RTU on a patch of grass. The grass turned brown and died within a few days. This incident served as a stark reminder of the importance of proper training and careful application.

5. Alternative Methods for Vegetation Control

If you’re concerned about the potential for Tordon RTU to kill grass, consider alternative methods for vegetation control.

Manual Removal: This involves physically removing the unwanted vegetation by hand or with tools like axes, saws, or weed whackers. This method is labor-intensive but effective and environmentally friendly.
Mechanical Removal: This involves using machinery like brush hogs or excavators to remove the unwanted vegetation. This method is faster than manual removal but can be more disruptive to the soil.
Mulching: Applying a layer of mulch around trees and shrubs can help suppress weed growth and conserve moisture.
Prescribed Burning: In some cases, prescribed burning can be used to control unwanted vegetation and promote the growth of desirable plants. However, this method requires careful planning and execution and should only be done by trained professionals.
Natural Herbicides: There are several natural herbicides available that are less toxic than synthetic herbicides like Tordon RTU. These include vinegar, citric acid, and clove oil. However, natural herbicides may not be as effective as synthetic herbicides and may require multiple applications.

Case Study: Sustainable Firewood Harvesting

I’ve been working on developing a sustainable firewood harvesting area on my property. My goal is to remove invasive species like buckthorn and honeysuckle while preserving the native vegetation, including the grass. I’ve been using a combination of methods:

Manual Removal: I’ve been manually removing smaller buckthorn and honeysuckle plants.
Cut-Stump Treatment: I’m using the cut-stump method with Tordon RTU to control larger buckthorn and honeysuckle plants.
Mulching: I’m applying a layer of wood chips around the base of the desirable trees and shrubs to suppress weed growth and conserve moisture.
Prescribed Burning: I’m planning to conduct a prescribed burn in the area to control unwanted vegetation and promote the growth of native grasses.

This approach allows me to control the invasive species while minimizing the risk of harming the desirable vegetation.

Benefits of Alternative Methods:

Environmentally Friendly: Alternative methods are generally more environmentally friendly than using synthetic herbicides.
Reduced Risk of Damage to Non-Target Plants: Alternative methods are less likely to damage non-target plants like grass.
Improved Soil Health: Some alternative methods, like mulching, can improve soil health.
Increased Biodiversity: Alternative methods can promote increased biodiversity by creating a more diverse habitat.

Strategic Advantages:

Long-Term Sustainability: Sustainable vegetation management practices are essential for long-term forest health and productivity.
Reduced Reliance on Chemical Herbicides: Reducing reliance on chemical herbicides can save money and reduce environmental impact.
Improved Public Image: Using environmentally friendly vegetation management practices can improve your public image and attract customers who are concerned about the environment.

Technical Details:

Cost: The cost of alternative methods can vary depending on the method used and the size of the area being treated. Manual removal is generally the most expensive method, while mulching is relatively inexpensive.
Material Specs: When mulching, use wood chips that are free of weed seeds and pathogens.
Timing Estimates: The timing of vegetation management activities is crucial. For example, manual removal is best done in the spring or fall when the plants are actively growing.
Skill Levels Required: Some alternative methods, like prescribed burning, require specialized training and experience.

Next Steps for Implementation:

Assess Your Situation: Determine the types of vegetation you need to control and the types of grass in your work area.
Choose the Right Method: Select the most appropriate method for vegetation control based on your situation and your goals.
Follow the Instructions: Carefully follow the instructions for the method you choose.
Monitor the Results: Monitor the results of your vegetation management efforts and make adjustments as needed.

Conclusion:

While Tordon RTU can be a valuable tool for controlling unwanted vegetation, it’s essential to use it responsibly and be aware of the potential risks to non-target plants like grass. By understanding the factors that influence grass damage, using safe application techniques, and considering alternative methods, you can effectively manage vegetation without harming the environment. Remember, as woodworkers and stewards of the land, our goal should always be to balance efficiency with environmental responsibility. By taking a thoughtful and informed approach, we can ensure that our wood processing and firewood preparation activities are sustainable and beneficial for generations to come. And most importantly, always prioritize safety – for yourself, your team, and the environment.

Does Tordon RTU Kill Grass? (5 Expert Tips for Woodworkers)