New NCASI Technical Bulletin describes herbicide use patterns on corporate forest land

Herbicides are an important tool used in forestry to manage plant species composition and control competing vegetation. Herbicide use enhances forest productivity and thus is important to the economics of forest management in the United States. Herbicides also are used to address objectives unrelated to timber production, e.g., control of invasive species, ecological restoration, and creation of snags and other enhancements of wildlife habitat. Herbicide applicators use many tools and techniques to assist accurate targeting of herbicide applications and reduction of off-site drift.

NCASI recently posted a new report to its website, Technical Bulletin No. 1031, Herbicide Use Patterns on Corporate Forest Lands in the United States, 2011. The report presents results of a survey of corporate forest owners to characterize applications of forestry herbicides in 2011 on lands under their control in the US. Results of the survey confirm that herbicides are used for site preparation, herbaceous weed control, and release, and that herbicide use patterns differ by region, forest type, and application purpose.

In general, survey results indicate that managers apply herbicides infrequently during a typical forest rotation, use prescriptions tailored for local site conditions, use concentrations well below label maximums, and use many techniques and practices to reduce risks and the potential for herbicides to affect non-target areas and species. Information about herbicide use patterns such as that presented in this Technical Bulletin is relevant to ecological risk assessments.

Member company, government, and academic personnel may request a printed complimentary copy of this report by emailing or calling (352) 331-1745. Member companies also can download the report from NCASI’s website (