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🛡️ Protect your plants like a pro—because your garden deserves the best!
Grower's Ally Fungicide Concentrate is a powerful, broad-spectrum citric acid treatment that controls powdery mildew, alternaria blight, and various rots on indoor and outdoor plants. This 8 oz bottle makes 5 gallons of residue-free, OMRI-listed organic fungicide, safe for use throughout all plant growth stages. Trusted by cultivators for its eco-friendly, pollutant-free formula, it’s ideal for organic gardeners seeking effective, safe disease control without compromising harvest timing.



















| ASIN | B09DPRRTRT |
| Active Ingredients | Citric Acid |
| Best Sellers Rank | #4,809 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #150 in Insect & Pest Repellent Spray Concentrates |
| Brand Name | Grower's Ally |
| Customer Reviews | 4.3 4.3 out of 5 stars (3,530) |
| 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 | 8.0 Fluid Ounces |
C**E
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.
T**D
Must have
Excellent product
B**H
Somewhat effective
Minimally effective on my cukes and zucchini. But with our rains in TX I don’t think this product is totally to blame.
K**.
Works well for Hydrangeas
Good product
R**R
Excellent stuff
Two applications in the battery mildew was gone great stuff didn't hurt to plant at all
K**S
Quick
Doesn’t work instantly
K**Z
⭐⭐⭐⭐⭐ Excelente calidad y muy útil Compré este producto hace unas semanas y ha superado completamente mis expectativas. La calidad de los materiales es muy buena y se nota que está bien fabricado. Además, es muy fácil de usar y cumple perfectamente con lo que promete en la descripción. Lo he estado utilizando casi a diario y hasta ahora no he tenido ningún problema. También me gustó mucho el diseño, es práctico y moderno. Sin duda, lo recomendaría a cualquier persona que esté buscando algo similar. Relación calidad-precio excelente. ¡Volvería a comprarlo!
L**S
Works !
Wow it works !!! Some of my perennials had powder mildew so I ordered this , two different applications to the plants and soil and like magic its gone ! Highly recommend this product .
Trustpilot
2 weeks ago
1 week ago