--- product_id: 28439436 title: "Pentra-Bark Penetrating Surfactant (4oz)" brand: "vivagrow" price: "S/.90" currency: PEN in_stock: true category: "Viva Grow" url: https://www.desertcart.pe/products/28439436-pentra-bark-penetrating-surfactant-4oz store_origin: PE region: Peru --- # 1:20 mix ratio for precision dosing Reduces treatment time significantly Only trunk application for safer use Pentra-Bark Penetrating Surfactant (4oz) **Brand:** vivagrow **Price:** S/.90 **Availability:** ✅ In Stock ## Summary > 🌳 Unlock the tree’s hidden pathways—treat smarter, faster, safer! ## Quick Answers - **What is this?** Pentra-Bark Penetrating Surfactant (4oz) by vivagrow - **How much does it cost?** S/.90 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/28439436-pentra-bark-penetrating-surfactant-4oz) ## Best For - vivagrow enthusiasts ## Why This Product - Trusted vivagrow brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Time & Chemical Savings:** Cut down treatment time and reduce insecticide or fungicide volume without compromising results—work smarter, not harder. - • **Proven Midwest Powerhouse:** Trusted since 2007 for Emerald Ash Borer control with Safari—join the community of savvy arborists. - • **Safer, Targeted Application:** Applied only to the trunk, minimizing environmental exposure and maximizing safety for you and your trees. - • **Effortless Systemic Delivery:** Harnesses lenticels to transport treatments directly into the tree’s vascular system—no messy sprays or soil injections needed. - • **California-Exclusive Registration:** The ONLY surfactant registered with Agri-Fos for Sudden Oak Death control in California—stay ahead of regulations. ## Overview Pentra-Bark Penetrating Surfactant is a 4oz organic spray designed to enhance systemic pesticide and fertilizer uptake by opening tree lenticels, enabling direct vascular transport. Registered in California for Sudden Oak Death control, it reduces treatment time and chemical use by targeting the trunk only, proven effective since 2007 for Emerald Ash Borer management. ## Description Pentra-Bark penetrating surfactant will take water soluble insecticide, fungicide, plant growth regulators, and fertilizer into the vascular system of the tree for translocation into foliage or roots, which eliminates the need to spray foliage, soil drench, bark inject, or pressure inject into soil. Pentra-Bark works because: All woody plants have microscopic openings in the exterior protective bark periderm layer called lenticels, these lenticels are functionally used for plant transpiration and pressure regulation. Lenticels connect directly to the plant’s annual spiral openings or vascular metabolic transport system contained in the plant’s cambial phelloderm. When Pentra-Bark is applied to the woody bark periderm in combination with systemic pesticides, it opens the lenticels and enables movement through the lenticels into the plant’s vascular transport system. California registration #83416-5001-AA ## Features - Great for use with Reliant, Agri-Fos, Garden Phos, Safari, Zylam, and other popular systemic products, mix at a 1:20~ ratio - Used successfully 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 amount of insecticide or fungicide needed for results - Safer than other products - Pentra-Bark is only applied to the trunk ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00O5INN7K | | Best Sellers Rank | #61,159 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,476 in Garden Fertilizers | | Brand | VivaGrow | | Brand Name | VivaGrow | | Customer Reviews | 4.5 out of 5 stars 91 Reviews | | Item Form | Spray | | Manufacturer | Agrichem Manufacturing | | Model Number | 4oz | | Special Feature | organic | | Special Features | organic | | Target Species | Fungus | | UPC | 080687536290 | ## Product Details - **Brand:** VivaGrow - **Item Form:** Spray - **Special Feature:** organic - **Target Species:** Fungus - **UPC:** 080687536290 ## Images ![Pentra-Bark Penetrating Surfactant (4oz) - Image 1](https://m.media-amazon.com/images/I/71tjopOqV0L.jpg) ![Pentra-Bark Penetrating Surfactant (4oz) - Image 2](https://m.media-amazon.com/images/I/7142AKfy5tL.jpg) ![Pentra-Bark Penetrating Surfactant (4oz) - Image 3](https://m.media-amazon.com/images/I/91DudSVeWlL.jpg) ![Pentra-Bark Penetrating Surfactant (4oz) - Image 4](https://m.media-amazon.com/images/I/91ot8AuWhYL.jpg) ![Pentra-Bark Penetrating Surfactant (4oz) - Image 5](https://m.media-amazon.com/images/I/A11e31lhbyL.jpg) ## Frequently Bought Together - VivaGrow Pentra-Bark Penetrating Surfactant (4oz) - Quest Reliant Systemic Fungicide 32oz/1 Quart - Chapin 20000 Made in USA 1 -Gallon Lawn and Garden Pump Pressured Sprayer, for Spraying Plants, Garden Watering, Weeds and Pests, Polypropylene, Translucent White --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pe/products/28439436-pentra-bark-penetrating-surfactant-4oz](https://www.desertcart.pe/products/28439436-pentra-bark-penetrating-surfactant-4oz) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-08-25*