How do I know which concentration to buy?

Consumer (RTU/concentrate) products are formulated for homeowner application rates. Professional-grade concentrates require accurate dilution — mistakes in either direction reduce effectiveness or create safety hazards. If you're new to pesticide application, start with ready-to-use formulations and work up to concentrates once you understand mixing and rates.

Can I mix this with other pesticides?

Tank mixing is common in professional applications but requires compatibility testing and label compliance. Never mix pesticides unless both labels permit it. One safe and effective combination: pair an adulticide with an IGR — they attack different life stages and don't interfere with each other.

How long does the treatment remain effective?

Residual activity depends on formulation, surface, UV exposure, and temperature. Micro-encapsulated formulations last longest (4–12 weeks). Wettable powders and emulsifiable concentrates typically last 2–6 weeks outdoors. Indoor applications on non-porous surfaces can persist significantly longer.

Is this product safe for use around pets and children?

All pesticides have some level of toxicity — 'safe' means used correctly according to the label. Keep children and pets out of treated areas until completely dry (minimum 2–4 hours for most sprays). For households with infants or chemically sensitive individuals, discuss low-exposure options (baits, dusts, IGRs) with a pest management professional.

Copper Fungicides

⚖️ Educational use only. Always read and follow the full product label — the label is the law under FIFRA. Full disclaimer → | ⚗️ Mixing Calculator →

🏷️ Brand Names — Same Active Ingredient

Kocide 3000 — OAR — professional copper hydroxide

Cueva — Certis — OMRI-listed copper octanoate

Bonide Copper Fungicide — consumer copper octanoate RTU

Champ WG — Nufarm — copper hydroxide WDG

🎯 What It Kills

✓ Fire Blight✓ Powdery Mildew✓ Downy Mildew✓ Early Blight✓ Late Blight✓ Anthracnose✓ Black Spot✓ Brown Rot

⚙️ How It Works

Copper releases ions that disrupt fungal and bacterial enzymes. Broad-spectrum bactericide and fungicide. OMRI-listed copper products approved for certified organic production. Preventive — stops new infections but does not cure existing disease.

⚗️ Mixing & Application

Cueva: 0.5–2 fl oz per gallon for home garden. Apply preventively before disease pressure. Multiple copper forms have different solubility — copper octanoate generally safer on plants.

⚗️ Open Mixing Calculator →

⚠️ Safety

⚠ Toxic to fish and aquatic invertebrates
⚠ Phytotoxicity possible above 85°F or under drought stress
⚠ Copper accumulates in soil with repeated use — limit applications
⚠ Do not mix with emulsifiable concentrate formulations

📋 Safety Data Sheet (SDS)

📄

Kocide 3000 — Safety Data Sheet

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1. Open the SDS PDF for this product
2. Screenshot or export page 1 as a JPG image
3. Upload to /sds/copper-fungicide-sds-page1.jpg
4. The image will display automatically here

📄 Search for this SDS on CDMS →

📄 Kocide 3000 — Safety Data Sheet · View the complete SDS document above or download below

📄 CDMS Label & SDS Database 📄 EPA Label Search

📚 Sources: EPA Pesticide Labels · NPIC Pesticide Info

Published: Jan 1, 2025 · Updated: Apr 7, 2026

Copper Fungicides — Kocide, Cueva, Bonide