--- product_id: 368034580 title: "Grower's Ally Fungicide, 8 oz" brand: "grower's ally" price: "¥7446" currency: JPY in_stock: true reviews_count: 8 category: "Grower's Ally" url: https://www.desertcart.jp/products/368034580-growers-ally-fungicide-8-oz store_origin: JP region: Japan --- # Kills & prevents powdery mildew fast 8 oz concentrate makes 5 gallons OMRI Listed & FIFRA 25(b) exempt Grower's Ally Fungicide, 8 oz **Brand:** grower's ally **Price:** ¥7446 **Availability:** ✅ In Stock ## Summary > 🌱 Defend your garden like a pro—because your plants deserve the best! ## Quick Answers - **What is this?** Grower's Ally Fungicide, 8 oz by grower's ally - **How much does it cost?** ¥7446 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/368034580-growers-ally-fungicide-8-oz) ## Best For - grower's ally enthusiasts ## Why This Product - Trusted grower's ally brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Maximize Your Harvest:** Powerful broad-spectrum fungicide that protects against powdery mildew, root rot, and blights to keep your plants thriving. - • **Organic & Eco-Friendly:** Formulated with food-grade citric acid, zero synthetic pesticides, and no heavy metals—safe for bees, kids, and pets. - • **Proven Cultivator Favorite:** Ranked top in gardening disease control with thousands of 5-star reviews praising its fast, effective results. - • **Residue-Free, Harvest Same Day:** Apply safely at any growth stage without worrying about harmful residues—perfect for proactive plant health management. - • **Versatile Indoor & Outdoor Use:** Trusted by cultivators for greenhouses, hydroponics, patios, and gardens—works seamlessly across all grow environments. ## Overview Grower's Ally Fungicide Concentrate is an 8 oz powerful, organic fungicide that makes up to 5 gallons of treatment solution. It uses food-grade citric acid to kill and prevent common plant diseases like powdery mildew and root rot without harmful chemicals. OMRI Listed and FIFRA 25(b) exempt, it’s safe for indoor, outdoor, and hydroponic use, allowing residue-free application at all growth stages. Trusted by thousands of cultivators, it’s the eco-conscious choice for maximizing plant health and yields. ## Description desertcart.com: Grower's Ally Fungicide Concentrate for Plants, 8 Oz, Makes 5 Gallons | Indoor Outdoor Plant Fungicide Treatment Control for Powdery Mildew, Alternaria Blight, Rot, Fungus - Trusted by Cultivators : Patio, Lawn & Garden Review: Good for powdery mildew - I live in the southeast U.S. where it's very humid most of the year, and powdery mildew is a constant battle. I'd tried milder DIY options (baking soda solutions) and that worked ok on some plants (like my bee balm, which the mildew seems to love) but wasn't as effective on my succulents (and not the most convenient to use, e.g. spray nozzles clogging after awhile). Decided to give this a try, and it has worked great at controlling powdery mildew on both outdoor & indoor plants. Even a single treatment (I always forget whatever short-term repeat it recommends in the directions) clears up most mildew. Some reviewers have commented about leaves falling off after using this on plants with powdery mildew-- but yeah, sounds like that's from the fungus. You're not going to restore leaf damage from powdery mildew, the goal is to prevent further damage/avoid it damaging so much foliage that it significantly harms the plant. My bee balm has had no leaf-loss issues with this. Likewise, my succulents will usually have a brown scar where the fungus was but keep those leaves (it'd make sense for a plant to drop leaves if you treated them with a pretty intense or widespread infection, as they'd no longer be much use to the plant). I also lightly spray my uninfected succulents, prophylactically (at the same dilution), and they've not suffered any ill effects from the fungicide. One caveat, I feel like a fungicide perhaps shouldn't... grow a bunch of mold? (Happened in both the spray bottle and the slightly larger bottle that I use to make the dilution, a week or two after mixing it up; both bottles had been closed in the meantime.) It may be that the fungicide is just targeted to fungi likely to affect plants rather than being a "nuke it all" approach (which would actually be a good thing IMO) or just balancing strength vs. safety for plants (and humans, other stuff in environment, etc.). Not taking off any stars as it still works well as applied to my plants right after diluting-- I'll just mix up smaller volumes at a time from now on, fresh each time I need to use it. Review: It works!! - Bugs on our Hydraengeas are gone and new leaves are emerging 2 days after using! ## Features - MAXIMIZE YIELDS – This outdoor and indoor plant fungicide kills and prevents common plant pathogens, including powdery mildew, alternaria blight root rot, crown rot, and stem rot. When unavailable, use Earth’s Ally Disease Control, which provides the same proven fungicide protection. - ZERO POLLUTANTS – Formulated with food-grade citric-acid, our formula is FIFRA 25(b) exempt and OMRI Listed for use in organic gardening. This garden safe spray tests clean and contains no residual solvents, no synthetic pesticides and no heavy metals. - KILLS AND PREVENTS POWDERY MILDEW – Our broad-spectrum citric acid fungicide is an effective natural disinfectant. It reduces bacterial growth yet is gentle on plant tissue. When this powdery mildew treatment is used preventatively, citric acid forms a protective barrier on the surface of the leaves to inhibit pathogen development. - HARVEST SAME DAY – The residue-free fungicide can be safely applied through all stages of plant growth, from clones through the flowering cycle when many problems occur. - RECOMMENDED BY CULTIVATORS – Used across indoor, outdoor, greenhouse, and hydroponic grow spaces. An eco-minded formula that’s bee-safe and suitable for homes with kids and pets. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09DPRRTRT | | Active Ingredients | Citric Acid | | Best Sellers Rank | #2,071 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #58 in Insect & Pest Repellent Spray Concentrates | | Brand | Grower's Ally | | Brand Name | Grower's Ally | | Customer Reviews | 4.3 out of 5 stars 3,681 Reviews | | Included Components | 8 oz Bottle | | Item Form | Liquid | | Item Weight | 8 ounces | | Liquid Volume | 8 | | Manufacturer | Sarasota Green Group | | Model Number | 10269 | | Part Number | 10269 | | Specification Met | OMRI | | Target Species | Insects | | UPC | 810021610269 | | Unit Count | 8 Fluid Ounces | ## Product Details - **Active Ingredients:** Citric Acid - **Brand:** Grower's Ally - **Item Form:** Liquid - **Item Weight:** 8 ounces - **Liquid Volume:** 8 ## Images ![Grower's Ally Fungicide, 8 oz - Image 1](https://m.media-amazon.com/images/I/5154rM2l0KL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Effective and safe against grey mold on cannabis buds?** A: Gray mold, or botrytis, is very difficult to treat. Grower's Ally Fungicide can help slow the spread of gray mold, but will not cure the disease or repair infected plants / buds. Infected buds need to be removed properly, and the environment (lower humidity, increased airflow...) must be addressed first, before any product can help you. There are many excellent articles that go into great detail about effectively treating gray mold. We wish you the best. **Q: Will this help leaf spots on mountain laurel?** A: If I can sure. **Q: Will this work for peach curl?** A: You must use a copper based fungicide that is specifically labeled for peach or nectarines **Q: Does this work on pachysandra blight** A: Grower's Ally Fungicide will work to help prevent the spread of blight on pachysandra, but it will not repair parts of the plant that are already damaged. We strongly recommend removing diseased leaves and disposing of them properly (and disinfecting your pruning tools). ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good for powdery mildew *by C***E on October 4, 2025* I live in the southeast U.S. where it's very humid most of the year, and powdery mildew is a constant battle. I'd tried milder DIY options (baking soda solutions) and that worked ok on some plants (like my bee balm, which the mildew seems to love) but wasn't as effective on my succulents (and not the most convenient to use, e.g. spray nozzles clogging after awhile). Decided to give this a try, and it has worked great at controlling powdery mildew on both outdoor & indoor plants. Even a single treatment (I always forget whatever short-term repeat it recommends in the directions) clears up most mildew. Some reviewers have commented about leaves falling off after using this on plants with powdery mildew-- but yeah, sounds like that's from the fungus. You're not going to restore leaf damage from powdery mildew, the goal is to prevent further damage/avoid it damaging so much foliage that it significantly harms the plant. My bee balm has had no leaf-loss issues with this. Likewise, my succulents will usually have a brown scar where the fungus was but keep those leaves (it'd make sense for a plant to drop leaves if you treated them with a pretty intense or widespread infection, as they'd no longer be much use to the plant). I also lightly spray my uninfected succulents, prophylactically (at the same dilution), and they've not suffered any ill effects from the fungicide. One caveat, I feel like a fungicide perhaps shouldn't... grow a bunch of mold? (Happened in both the spray bottle and the slightly larger bottle that I use to make the dilution, a week or two after mixing it up; both bottles had been closed in the meantime.) It may be that the fungicide is just targeted to fungi likely to affect plants rather than being a "nuke it all" approach (which would actually be a good thing IMO) or just balancing strength vs. safety for plants (and humans, other stuff in environment, etc.). Not taking off any stars as it still works well as applied to my plants right after diluting-- I'll just mix up smaller volumes at a time from now on, fresh each time I need to use it. ### ⭐⭐⭐⭐⭐ It works!! *by R***E on August 31, 2026* Bugs on our Hydraengeas are gone and new leaves are emerging 2 days after using! ### ⭐⭐⭐⭐ Fungicide *by G***D on August 11, 2026* Came as expected and the fungicide works great. ## Frequently Bought Together - Grower's Ally Fungicide for Plants Concentrate 8 oz | Plant Fungicide Treatment Control for Powdery Mildew, Fungus and More - Trusted by Cultivators for Indoor & Outdoor Use, Makes 5 Gallons - Grower's Ally Crop Defender 3 Concentrate 8 oz | Natural, Safe & Organic Insecticide & Fungicide Control for Plants - Powdery Mildew, Spider Mites & Russet Mite Killer – Makes 25 Gallons - 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.jp/products/368034580-growers-ally-fungicide-8-oz](https://www.desertcart.jp/products/368034580-growers-ally-fungicide-8-oz) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-24*