VivaGrow Pentra-Bark Penetrating Surfactant (16oz) | Systemic Uptake for Trees

Overview

VivaGrow Pentra-Bark is a penetrating surfactant designed to help water-soluble systemic products move into a tree's vascular system through the bark's lenticels. This pathway supports translocation toward foliage or roots, reducing the need for traditional spray or soil-based injections.

In practice, Pentra-Bark is applied to the trunk, where it works with the tree's natural openings to open pathways into the vascular transport system. The result is a practical, pint-sized option for trees in yards, parks, and managed landscapes.

Key benefits

• Compatible with Reliant, Agri-Fos, Garden Phos, Safari, Zylam, and other systemic products in a 1:20 mix
• Widely used in the Midwest since 2007 with Safari for emerald ash borer control
• California registered with Agri-Fos for Sudden Oak Death related treatments caused by Phytophthora ramorum
• Potentially reduces time spent on treatment and the amount of insecticide or fungicide needed
• Trunk-only application can offer a targeted, lower-exposure approach compared to foliar sprays

How to use

• Mix Pentra-Bark with the chosen systemic product at approximately 1:20
• Apply to the trunk following label directions to promote systemic movement

Practical considerations

For homeowners, arborists, and landscape managers, Pentra-Bark provides a convenient pint-size option that supports integration with existing products. While results depend on factors like tree health and product compatibility, many users report a more streamlined process and the ability to target treatment at the source, rather than relying solely on foliar methods.

Storage and safety

Store in a cool, dry place and seal after use. Follow label directions for PPE and handling. This trunk-based approach concentrates treatment at the tree stem, aligning with available product guidelines.