Forestry labeled herbicides can be an effective means of controlling undesirable forest vegetation and may present fewer risks to the forest manager when compared to the use of chainsaws or brush saws. They are used for achieving many objectives including: establishing desirable regeneration, increasing tree growth and timber production, creating and enhancing wildlife habitat, and controlling non-native/invasive plants. This webinar highlighted forestry herbicide application methods, products, and treatment guidelines for controlling competing and invasive vegetation. Presented by David R. Jackson, Extension Educator/Forester, Penn State Extension.
The 2/15/2012 webinar by Dave Jackson (links to recording archives are below) was a well attended and highly interactive presentation. Dave's webinar drew the largest ForestConnect webinar to date, and the discussion lasted for almost 30 minutes during both the noon and evening session.
The attendance and interaction suggest a strong interest among woodland owners and forester managers to learn strategies that are effective, efficient, and typically safer than other tools such as chainsaws and brush saws. Dave's presentation discussed the types of plants that interfere with private forest owner objectives to regenerate and maintain diversity. He discussed the reasons why we have the current problems with interfering plants, and he gave a streamlined look at the primary types of herbicides and application methods that owners and managers might consider for the common vegetation management projects. Two particularly interesting points: (1) herbicides are often used just once during a normal hardwood rotation of 80 to 100 years, and (2) the goal of forest herbicide applications is not full and extended control, but adequate control of undesired plants for months or a few years to allow desirable plants to establish. Here is Dave's forest vegetation management website that addresses the use of integrated vegetation management in forests. An important first step is the bulletin on using herbicides for forest management, available here.
A couple important caveats, based on the webinar and with general guidance for NY:
Webinar recording links
The label is the law. Read and follow the label. Work safely.
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