VivaGrow Pentra-Bark Penetrating Surfactant (4oz) – Systemic Tree Treatment

Overview

VivaGrow Pentra-Bark Penetrating Surfactant is designed to help water soluble products move into a tree's vascular system through the bark. By working with systemic products, it supports translocation to foliage or roots without the need for foliar sprays, soil drenches, bark injections, or soil pressure injections. The result is a streamlined approach that focuses treatment where the tree needs it most, delivering potential efficiency without sacrificing safety.

Why Pentra-Bark stands out

• Great compatibility with Reliant, Agri-Fos, Garden Phos, Safari, Zylam and other systemic products at about 1:20
• Proven in the Midwest since 2007 with Safari for Emerald Ash Borer control
• The only product registered in California with Agri-Fos fungicide for Sudden Oak Death caused by Phytophthora ramorum
• Significantly reduces tree treatment time and lowers the amount of insecticide or fungicide needed for results
• Safer than many alternatives by restricting application to the trunk surface

How it works in the tree

Woody plants feature microscopic openings in the exterior periderm called lenticels that support transpiration and pressure regulation. When Pentra-Bark is applied in combination with a systemic product, it helps open these lenticels and encourages movement into the cambial tissue where the plant's vascular transport system resides. From there, active ingredients travel through the tree to reach leaves and roots, enabling translocation without direct leaf or soil applications.

In real-world settings, the timing and pairing with compatible formulations can influence how quickly and where the product distributes. The design aims to work within a practical maintenance routine, offering a one-step approach to systemic delivery when used per label directions.

Practical use and best practices

• Mix ratio guidance: approximately 1 part Pentra-Bark to 20 parts water when combined with compatible systemic products
• Target trunk-only applications for safety, ease of access, and reduced exposure to non-target areas
• Follow label instructions and local regulations to align with best horticultural practices
• California registration number 83416-5001-AA appears on product labeling, reflecting regulatory alignment

Overall, Pentra-Bark offers a flexible route to systemic delivery that may complement existing tree care programs, with a focus on efficiency, safety, and practical field use.