---
product_id: 205071698
title: "Fungicide for Plants Concentrate - Indoor Outdoor Plant Fungicide Treatment Control for Powdery Mildew, Alternaria Blight, Rot, Fungus - Trusted by Cultivators - 32 Oz, Makes 20 Gallons"
brand: "grower's ally"
price: "444 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Grower's Ally"
url: https://www.desertcart.ro/products/205071698-fungicide-for-plants-concentrate-indoor-outdoor-plant-fungicide-treatment-control
store_origin: RO
region: Romania
---

# 32 oz concentrate makes 20 gallons OMRI Listed & FIFRA 25(b) exempt organic formula Broad-spectrum citric acid fungicide Fungicide for Plants Concentrate - Indoor Outdoor Plant Fungicide Treatment Control for Powdery Mildew, Alternaria Blight, Rot, Fungus - Trusted by Cultivators - 32 Oz, Makes 20 Gallons

**Brand:** grower's ally
**Price:** 444 Lei
**Availability:** ✅ In Stock

## Summary

> 🛡️ Protect your plants like a pro—grow green, grow clean!

## Quick Answers

- **What is this?** Fungicide for Plants Concentrate - Indoor Outdoor Plant Fungicide Treatment Control for Powdery Mildew, Alternaria Blight, Rot, Fungus - Trusted by Cultivators - 32 Oz, Makes 20 Gallons by grower's ally
- **How much does it cost?** 444 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/205071698-fungicide-for-plants-concentrate-indoor-outdoor-plant-fungicide-treatment-control)

## 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

- • **Eco-Friendly & Safe:** Food-grade citric acid formula with zero pollutants, safe for kids, pets & bees
- • **Maximize Your Harvest:** Kills & prevents powdery mildew, blight, rot, and fungus indoors & outdoors
- • **Trusted by Cultivators:** Preferred choice for greenhouse, hydroponic, and home growers seeking reliable disease control
- • **Residue-Free Protection:** Apply anytime—even during flowering—for same-day harvest without chemical residues
- • **Versatile & Easy to Use:** Concentrated 32 oz bottle dilutes to 20 gallons, perfect for proactive and reactive treatments

## Overview

Grower's Ally Fungicide is a powerful, organic-certified plant treatment that controls powdery mildew, blight, and rot across indoor and outdoor environments. Its food-grade citric acid formula is safe for use around kids, pets, and pollinators, offering residue-free protection throughout all growth stages. Trusted by cultivators, this 32 oz concentrate makes 20 gallons of eco-friendly fungicide, ensuring your plants thrive with maximum yield and minimal chemical impact.

## Description

desertcart.com: Grower's Ally Fungicide for Plants Concentrate - Indoor Outdoor Plant Fungicide Treatment Control for Powdery Mildew, Alternaria Blight, Rot, Fungus - Trusted by Cultivators - 32 Oz, Makes 20 Gallons : 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: Product works well - Good product, arrived very quick, would buy again.

## 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 | B081TFHBQ7 |
| Best Sellers Rank | #4,712 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #71 in Insect & Pest Repellent Spray Concentrates |
| Brand | Grower's Ally |
| Brand Name | Grower's Ally |
| Customer Reviews | 4.3 out of 5 stars 3,516 Reviews |
| Included Components | Fungicide |
| Item Form | Liquid |
| Item Weight | 2.3 Pounds |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Sarasota Green Group |
| Model Number | GA-FUNGICIDE-Prnt |
| Part Number | GA-FUNGICIDE-Prnt |
| Target Species | Fungus |
| UPC | 810021610030 |
| Unit Count | 32.0 Fluid Ounces |

## Product Details

- **Item Form:** Liquid
- **Item Weight:** 2.3 Pounds
- **Liquid Volume:** 32 Fluid Ounces
- **Brand:** Grower's Ally
- **Target Species:** Fungus

## Images

![Fungicide for Plants Concentrate - Indoor Outdoor Plant Fungicide Treatment Control for Powdery Mildew, Alternaria Blight, Rot, Fungus - Trusted by Cultivators - 32 Oz, Makes 20 Gallons - Image 1](https://m.media-amazon.com/images/I/81E30PnhTpL.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.

### ⭐⭐⭐⭐⭐ Product works well
*by J***N on February 23, 2026*

Good product, arrived very quick, would buy again.

### ⭐⭐⭐⭐ Somewhat effective
*by B***H on July 11, 2025*

Minimally effective on my cukes and zucchini. But with our rains in TX I don’t think this product is totally to blame.

## Frequently Bought Together

- Grower's Ally Fungicide for Plants Concentrate 32 oz | Plant Fungicide Treatment Control for Powdery Mildew, Fungus and More - Trusted by Cultivators for Indoor & Outdoor Use, Makes 20 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
- Bonide Captain Jack Copper Fungicide 16 oz Concentrated Plant Disease Control Solution for Organic Gardening

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-03-10*