Plant Care

Reliant Systemic Fungicide

Manufacturer liquid packaging example; size and label may vary. Not the solid formulation.

A phosphite-based systemic fungicide range for label-listed diseases, including Phytophthora, Pythium and downy mildew. Permitted crops, application methods and restrictions depend on the exact formulation.

At a glance

Product type: Systemic fungicide
For: Label-listed plant diseases

Sizes & prices

Price$62.50

Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.

Ask about this item

Directions & precautions

Keep applications out of bodies of water and follow the package’s environmental precautions.
Some copper products are incompatible; check the manufacturer’s compatibility instructions before mixing.

Read the label on the package before use. Confirm the plant, problem and application site are listed, and follow its rates, protective equipment, harvest intervals and re-entry precautions. Observe warnings for pollinators, pets and water; never assume “organic” means harmless.

This summary does not replace the label on your package.

Manufacturer & label

Quest Products

Match the product and formulation to your package before using these instructions; older packaging or formulas may differ.

Photo: Quest Products. Image source ↗.