Grower's Ally® Fungicide - 32oz - Concentrate

Citric Acid Fungicide & Bactericide for Powdery Mildew, 32oz Concentrate

Powdery mildew is one of the most persistent fungal problems in any grow room, and many synthetic fungicides carry pre-harvest intervals or leave residues that complicate testing programs. Grower's Ally Fungicide is built on food-grade citric acid instead of synthetic chemistry, giving it both fungicidal and bactericidal activity against powdery mildew and common bacterial pathogens. The OMRI Listed, FIFRA 25(b)-exempt formula tests clean of residual solvents, synthetic pesticides, and heavy metals, and is labeled right through harvest day.

This 32oz concentrate dilutes to cover more square footage per bottle, a better fit for growers running a regular weekly spray program across a larger canopy.

Key Features & Benefits

• Food-Grade Citric Acid Fungicide & Bactericide — disrupts fungal and bacterial cell membranes on contact instead of relying on synthetic fungicide chemistry.
• Tests Clean — formulated without residual solvents, synthetic pesticides, or heavy metals, a fit for operations with strict end-product testing requirements.
• OMRI Listed & FIFRA 25(b) Exempt — approved for organic input use and classified under EPA's minimum-risk pesticide exemption.
• Day-of-Harvest Safe — no pre-harvest interval, labeled through harvest day in any grow environment.

Who Should Use This

Commercial cultivators and serious home growers managing powdery mildew and bacterial disease pressure who need a spray that tests clean and carries no restriction on flowering-stage or day-of-harvest use.

About Grower's Ally Fungicide

Grower's Ally is Sarasota Green Group's commercial-focused line, built on the same food-grade citric acid chemistry as the company's Earth's Ally products but positioned for cultivators who need documented, clean-testing inputs. The brand states its formulas are designed for integrated pest management programs used by commercial growers.

Frequently Asked Questions

What makes citric acid effective against powdery mildew?

Food-grade citric acid is a GRAS compound that disrupts fungal cell membranes on contact. That direct action gives it activity against powdery mildew without relying on systemic synthetic fungicide chemistry.

What does "tests clean" mean for this product?

Grower's Ally Fungicide is formulated without residual solvents, synthetic pesticides, or heavy metals. That means treated plant material doesn't carry detectable residue from the product itself, a common requirement in commercial testing programs.

Can it be used during flowering?

Yes. Grower's Ally Fungicide carries no pre-harvest interval and is labeled for use through harvest day, including the flowering stage. Always follow the product label's specific application instructions.

Does it also control bacterial disease?

Yes. The citric acid formula has bactericidal activity against common bacterial plant pathogens in addition to its fungicidal action on powdery mildew.

How do I choose between the ready-to-use and concentrate versions?

Both use the same citric acid fungicide and bactericide formula. Pick the ready-to-use bottle for spot treatment straight from the container, or the concentrate to dilute with water and cover more canopy per bottle at a lower cost per application.