Earth's Ally® Disease Control - 32oz - Concentrate

Food-Grade Citric Acid Control for Powdery Mildew & Blight, 32oz Concentrate

Powdery mildew, downy mildew, blight, canker, black spot, and leaf spot spread fast once conditions turn humid, and many synthetic fungicides carry pre-harvest intervals that rule out spraying close to picking day. Earth's Ally Disease Control replaces that synthetic chemistry with food-grade citric acid, a GRAS (Generally Recognized as Safe) compound that disrupts fungal cell membranes on contact. The OMRI Listed, FIFRA 25(b)-exempt formula is labeled for herbs and vegetables right up to harvest day.

This 32oz concentrate dilutes to cover more plants per bottle, a better fit for gardeners managing several beds or repeat applications across a growing season.

Key Features & Benefits

• Food-Grade Citric Acid Active Ingredient — a GRAS compound that disrupts fungal cell membranes on contact instead of relying on systemic synthetic chemistry.
• Six-Disease Label — controls powdery mildew, downy mildew, blight, canker, black spot, and leaf spot across vegetables, herbs, ornamentals, and fruit.
• OMRI Listed & FIFRA 25(b) Exempt — meets USDA organic input standards and falls under EPA's minimum-risk pesticide exemption criteria.
• Day-of-Harvest Safe — no pre-harvest interval; labeled for herbs and vegetables right up to picking day.

Who Should Use This

Home gardeners, hobbyists, and small-scale growers managing fungal disease pressure on vegetables, herbs, ornamentals, and fruit trees who want an organic-compliant spray safe to use close to harvest.

About Earth's Ally Disease Control

Sarasota Green Group built its Earth's Ally line around food-grade acids and botanical oils instead of synthetic active ingredients, positioning the products for home gardeners who want organic-compliant options. The company states its formulas draw on practices already used in commercial agriculture before reaching retail shelves.

Frequently Asked Questions

What is the active ingredient in Disease Control?

The active ingredient is food-grade citric acid, a GRAS compound that disrupts fungal cell membranes on contact. It's the same reason the product carries no pre-harvest interval — it isn't a systemic synthetic fungicide.

Can I spray it on vegetables right before harvest?

Yes. Disease Control is OMRI Listed, FIFRA 25(b) exempt, and labeled for herbs and vegetables through the day of harvest. Check the product label for the full crop and disease list before applying.

Does it prevent disease or treat an active outbreak?

Citric acid works on contact, so most growers apply Disease Control preventively on a regular spray schedule before disease pressure builds. See the product label for guidance on treating plants that already show symptoms.

How is this different from a synthetic fungicide?

Synthetic fungicides typically work systemically and carry pre-harvest intervals. Citric acid disrupts fungal cell membranes directly on contact instead, which is why the label allows use right up to harvest day.

What's the difference between the ready-to-use and concentrate versions?

Both use the same food-grade citric acid formula. The ready-to-use bottle sprays straight from the container for smaller plantings, while the concentrate dilutes with water to cover more plants at a lower cost per treatment.