Effective Crossbow Herbicide Application Rates for Woody Plant Control

Woody plant control is crucial in maintaining healthy ecosystems and agricultural landscapes. One effective method of controlling unwanted woody plants is through herbicide application, specifically using crossbow herbicides like triclopyr and 2,4-D. In this article, we will explore the best practices for applying crossbow herbicides to ensure optimal results.

Common Woody Plants That Re-Sprout

Before discussing application rates, it's essential to understand which woody plants are prone to re-sprouting after cutting. In Kansas, common trees that exhibit this behavior include ash, cottonwood, elm, oaks, osage orange (hedge), persimmon, black and common honey locust, saltcedar, and Russian olive.

Application Rates for Crossbow Herbicides

When applying crossbow herbicides, it's crucial to follow the recommended application rates to ensure effective control of woody plants. The most commonly used crossbow herbicide is triclopyr, which can be mixed with diesel fuel or a basal oil.

For small diameter woody plants (less than 6 inches in diameter), applying Milestone 5% v/v with a compatible basal oil can provide excellent results. For larger diameter plants, treating the cut surface with triclopyr and diesel fuel within 30-60 minutes after cutting is recommended. This ensures that the herbicide translocates effectively through the plant.

Best Practices for Application

To ensure optimal results when applying crossbow herbicides, follow these best practices:

1. Treat any exposed trunk or exposed roots to prevent re-sprouting.

2. Spray the cambium and light-colored sapwood to facilitate translocation of the herbicide.

3. Apply triclopyr and diesel fuel within 30-60 minutes after cutting to prevent sap from sealing over the cut surface.

4. For larger diameter plants (greater than 6 inches in diameter), perform a jar test by mixing Milestone with basal oil to determine compatibility.

Available Crossbow Herbicides

Several crossbow herbicides are available for use, each with its unique characteristics and application rates. Some popular options include:

1. Pathfinder II: A ready-to-use product that does not require mixing with diesel fuel.

2. PastureGard HL: A premix of triclopyr and fluroxypyr that can be applied as a basal bark or cut-stump treatment.

3. Remedy Ultra: A labeled herbicide that requires a 20-30% solution in diesel fuel.

Timing is Everything

The timing of application is crucial for effective crossbow herbicide use. Late summer and fall are excellent times to treat unwanted stands of woody plants, as the temperatures are cooler and humidity is lower, reducing the risk of drift or volatility.

Crossbow herbicides are a valuable tool in controlling woody plant populations. By following recommended application rates and best practices, producers can achieve optimal results while minimizing environmental impact. Remember to choose the right crossbow herbicide for your specific needs and always follow label instructions.

Crossbow herbicide application rates