How Do You Get Rid of Multiflora Rose?

Multiflora rose is an invasive plant species that can quickly spread and outcompete native vegetation. To effectively manage and remove multiflora rose, you can employ a combination of herbicide applications, mechanical removal techniques, and consider environmental and cost implications.

What Herbicides Are Effective for Multiflora Rose?

Specific herbicide products and application rates that have proven effective for controlling multiflora rose include:

• Glyphosate: Effective as a cut-stump treatment using a 10- to 50-percent solution. Apply directly to the cut stump within minutes of cutting, preferably during the late growing season (July-September) or dormant season to minimize harm to non-target species.
• Example products: Roundup, other glyphosate formulations.
• Application rate: 10- to 50-percent solution for cut-stump treatment.
• Triclopyr: Can be applied to cut stems or canes using a 50-percent solution in water. Best applied during the dormant season to reduce damage to non-target species.
• Example products: Garlon 3A.
• Application rate: 50-percent solution in water.
• Dicamba and 2,4-D: Effective for foliar and basal bark treatments.
• Example products: Banvel, Clarity, Crossbow (2,4-D + triclopyr).
• Application rate: Typically 1- to 1.5-percent solution for foliar treatments.

When Is the Best Time to Apply Herbicides?

The timing of herbicide application is crucial for effective control of multiflora rose:

• Late Growing Season: July to September is effective for cut-stump treatments with glyphosate and triclopyr.
• Dormant Season: Preferred for triclopyr applications to minimize harm to non-target species.
• Early to Mid-Flower: Effective time for foliar treatments with glyphosate and other herbicides.

What Mechanical Removal Techniques Are Effective?

In addition to herbicide applications, mechanical removal techniques can also be used to manage multiflora rose:

• Cut-and-Treat Method: Cut the multiflora rose stems as close to the ground as possible and immediately apply a glyphosate-based solution to the freshly cut stump. This method is highly effective and reduces regrowth.
• Repeated Cutting: Cut the plant 3-6 times per growing season for multiple years to deplete the root reserves and weaken the plant.
• Root Removal: Dig out the entire root system to prevent regrowth. This is most effective for smaller infestations.
• Repeated Mowing: Mow the area 3-6 times per growing season for more than one year. This method can be effective but may require repeated efforts over several years.

What Environmental Considerations Should Be Taken?

When managing multiflora rose, it’s important to consider the impact on local ecosystems and take steps to protect native plant species:

• Minimize the use of herbicides to avoid harm to non-target species. Selective herbicides and targeted application methods can help reduce this risk.
• Use cut-stump or basal bark treatments to minimize the impact on surrounding vegetation.
• Avoid mowing in areas with sensitive native plants to prevent damage.
• Implement prescribed burns in fire-adapted communities to control multiflora rose while promoting native vegetation.
• Regularly monitor the area for regrowth and new seedlings, and continue maintenance practices as needed to prevent reinfestation.

What Are the Estimated Costs Involved?

The costs associated with multiflora rose removal can vary depending on the methods used and the size of the infestation:

• Herbicides: The cost of herbicides can range from $10 to $50 per gallon, depending on the concentration and brand.
• Tools: Mechanical removal tools can range from $20 to $200.
• Labor: Hiring professional services can range from $50 to $200 per hour.
• Permits and Regulations: Check local regulations for any necessary permits or restrictions on herbicide use.

By understanding the various control methods, timing, environmental considerations, and cost factors, you can develop an effective strategy to get rid of multiflora rose and restore the health of your local ecosystem.

Reference:

1. Multiflora Rose: An Exotic Invasive Plant Fact Sheet – EcoLandscaping.org
2. Multiflora Rose Control in Pastures – Penn State Extension
3. How to Remove Multiflora Rose – Trees Atlanta
4. Multiflora Rose (Rosa multiflora) – Missouri Botanical Garden
5. Multiflora Rose (Rosa multiflora) – University of Connecticut