Do not use for disease control in greenhouses.
- Target pest
- plant diseases
- Location
- Outdoor
Nothing here is label direction — the label is the law. These are notes from other applicators, moderated before they appear. Check the labeling accompanying the product and applicable state requirements.
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Quadris Opti is a broad-spectrum, preventative fungicide used for the control of plant diseases on potatoes, tomatoes, and vegetables. It contains two active ingredients: azoxystrobin (4.6%) and chlorothalonil (48.0%). It is formulated as a suspension concentrate (SC). This product is highly effective for preventative disease management but should be integrated into an overall IPM strategy. Note that Quadris Opti is extremely phototoxic to certain apple varieties; avoid using equipment previously used on apple trees. When applying, ensure adequate coverage and canopy penetration. For ground applications, use sufficient water volume; for aerial applications, use a minimum of five gallons of water per acre. Users must follow all Worker Protection Standard (WPS) requirements, including specific PPE and restricted-entry intervals. The product is toxic to freshwater and estuarine/marine fish and aquatic invertebrates. Always prevent drift toward non-target aquatic habitats or sensitive areas.
Do not use for disease control in greenhouses.
| Label notes |
|---|
| For aerial applications, use a minimum of five gallons of water per acre. When mixing with other products, check compatibility; if unknown, mix a small amount and allow to stand for 20 minutes to check for physical compatibility. |