Pine control during chemical site preparation
Herbicide and timing evaluation
Field work across multiple regions paired herbicide and adjuvant combinations with different application windows to identify better-performing approaches to volunteer pine control before planting.
Volunteer pines can sharply increase stand density and undermine future timber value.
Treatment chemistry and application timing were evaluated together.
Field-informed mix and spray-window guidance for landowners and applicators.
The regeneration risk
Challenge
Volunteer pines often emerge from seed remaining in the soil after harvest. In a newly planted pine stand, these unplanned stems can dramatically increase density and undermine overall timber value. Foresters commonly target volunteer pine with herbicides during site preparation, before genetically improved seedlings are planted. Control can be inconsistent, however, leaving landowners with expensive treatments that do not produce the intended result.
The field evidence
Field evaluation
We worked with landowners and applicators in multiple regions to evaluate combinations of herbicides, adjuvants, and application timing. Looking at those variables together established a field basis for identifying the mixes and spray windows that performed best under the conditions evaluated.
- Herbicide combinations
- Adjuvants
- Application timing
From evidence to application
Treatment design
The findings informed treatment guidance that paired herbicide-and-adjuvant mixes with appropriate application windows. Intended for site-preparation work completed before genetically improved seedlings were planted, the guidance gave applicators clearer direction on what to spray and when.
The result
Decision framework
The resulting treatment guidance helped landowners and applicators approach spraying for pine control with efficiency and confidence while keeping recommendations grounded in regional field experience.
Planning the next stand?
Build the treatment plan around the site.
Tell us what is growing, when you plan to plant, and how the site-preparation window is shaping up. We can help develop a practical treatment approach for the stand and operation.
Discuss your site-prep plan