{"product_id":"thc-rhizo-shield-root-protection","title":"THC Rhizo Shield | Root Zone Defence, Sterilisation \u0026 Plant Immune Support","description":"\u003cp\u003e\u003cstrong\u003eTHC Rhizo Shield\u003c\/strong\u003e is a multi-function root zone conditioner and defence solution to suppress pathogens, maintain a clean rhizosphere, and activate plant immune responses. In any grow system, the root zone is constantly exposed to bacteria, fungi, algae, and viral contaminants. Once established, these form biofilm layers and infection points that cause root rot, block nutrient uptake, and stress plants at a fundamental level.\u003c\/p\u003e\n\u003cp\u003eRhizo Shield combines plant-derived bioactive compounds and microbial control agents to prevent pathogen establishment before it becomes a problem, and correct it when it does. Compatible with hydroponics, coco coir, and soil. Also effective as a foliar spray and equipment steriliser between cycles.\u003c\/p\u003e\n\u003ch2\u003eKey Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSuppresses root rot (Pythium), fungal pathogens, algae, and harmful bacteria\u003c\/li\u003e\n\u003cli\u003ePrevents biofilm formation and organic contamination in the root zone\u003c\/li\u003e\n\u003cli\u003eImproves oxygen diffusion, nutrient exchange, and root surface activity\u003c\/li\u003e\n\u003cli\u003eActivates natural plant defence responses for improved disease resistance\u003c\/li\u003e\n\u003cli\u003eMulti-use: root zone, foliar application, and equipment sterilisation\u003c\/li\u003e\n\u003cli\u003eNon-toxic, plant-derived, and safe across all grow systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003ePlant-derived bioactive extracts — including phenolics, organic acids, and secondary metabolites — disrupt microbial cell membranes and inhibit the growth of fungi, bacteria, and algae at the root surface. The microbial control mechanism creates an environment hostile to harmful organisms without relying on living bacteria, breaking down organic contamination and preventing pathogen re-establishment. A cleaner root zone allows better oxygen diffusion and nutrient exchange, directly improving plant performance. Rhizo Shield also triggers induced systemic resistance, strengthening the plant's own defence mechanisms before infection takes hold.\u003c\/p\u003e\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eAdd to your nutrient solution regularly to maintain a clean rhizosphere. Apply as a foliar spray to treat fungal outbreaks directly. Use between crop cycles for equipment and system sterilisation. Works across DWC, NFT, aeroponics, coco, and soil.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eUse preventatively — stopping pathogens early is far easier and less costly than correcting an outbreak mid-cycle.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eTHC Rhizo Shield is a root zone defence system — not just a treatment. Use it to protect your crop from the ground up.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFrequently Bought Together\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/o16-stabilized-oxygen-plant-booster\"\u003e\u003cstrong\u003eO16 Stabilised Oxygen\u003c\/strong\u003e\u003c\/a\u003e — improves dissolved oxygen in the root zone, creating conditions hostile to anaerobic pathogens like Pythium\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/guardian-hydro-clean-root-zone-steriliser\"\u003e\u003cstrong\u003eGuardian Hydro Clean\u003c\/strong\u003e\u003c\/a\u003e — use between cycles to sterilise your system before Rhizo Shield maintains protection through the grow\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/thc-reskue-plant-recovery-formula\"\u003e\u003cstrong\u003eTHC Reskue\u003c\/strong\u003e\u003c\/a\u003e — if root damage has already occurred, pair Rhizo Shield with Reskue to defend and recover simultaneously\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eHow do I add THC Rhizo Shield to my feeding program?\u003c\/h3\u003e\n\u003cp\u003eAdd THC Rhizo Shield to your nutrient solution after mixing your base nutrient. Always add additives to water rather than directly to concentrated nutrient solutions. Stir well after each addition and check EC and pH before use. Start at the lower end of the recommended dose range and increase progressively — additives are potent and more is not always better.\u003c\/p\u003e\n\u003ch3\u003eIs THC Rhizo Shield compatible with organic and mineral nutrient programs?\u003c\/h3\u003e\n\u003cp\u003eTHC Rhizo Shield is compatible with most hydroponic nutrient programs including both mineral and organic-based systems. If running a fully organic or biological program, check the formulation — some mineral additives can inhibit beneficial microbial populations. When in doubt, contact us at hello@apexgrow.com.au for compatibility advice specific to your setup.\u003c\/p\u003e\n\u003ch3\u003eCan I use THC Rhizo Shield in soil, coco, and hydro?\u003c\/h3\u003e\n\u003cp\u003eYes — THC Rhizo Shield is suitable for use across all growing mediums including soil, coco coir, perlite, rockwool, and all recirculating and run-to-waste hydroponic systems. Dose rates may vary slightly between growing systems — always follow the manufacturer's feeding chart for your specific medium.\u003c\/p\u003e\n\u003ch3\u003eDoes THC Rhizo Shield ship fast within Australia?\u003c\/h3\u003e\n\u003cp\u003eYes — THC Rhizo Shield ships from our Australian warehouse with fast tracked delivery Australia-wide. Most east coast orders arrive within 2–5 business days. WA, NT, and TAS orders typically arrive within 5–12 business days.\u003c\/p\u003e","brand":"THC","offers":[{"title":"1L","offer_id":43147279433791,"sku":"NTHCRS-1L","price":50.95,"currency_code":"AUD","in_stock":true},{"title":"5L","offer_id":43147279466559,"sku":"NTHCRS-5L","price":194.95,"currency_code":"AUD","in_stock":true},{"title":"20L","offer_id":43147279499327,"sku":"NTHCRS-20L","price":542.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/6898\/8479\/files\/THC-RHIZO-SHIELD_1000x1000_Grey-copy-19.png?v=1776747230","url":"https:\/\/apexgrow.com.au\/products\/thc-rhizo-shield-root-protection","provider":"Apex Grow","version":"1.0","type":"link"}