⚖️ 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
Orthene 97 — OHP — wettable powder, professional
Acephate Pro 75 — Albaugh — WP professional
Surrender — Certis — fire ant bait
Orthene Fire Ant Killer — consumer mound drench
🎯 What It Kills
✓ Fire Ants✓ Aphids✓ Caterpillars✓ Leafminers✓ Thrips✓ Whiteflies✓ Armyworms✓ Bagworms
⚙️ How It Works
Acephate is a systemic organophosphate absorbed by plants and translocated through the vascular system, making it effective against sucking and chewing insects on ornamentals.
⚗️ Mixing & Application
Orthene 97 WP: 0.6–1.3 oz per gallon for ornamental pests. For fire ant mounds: 1–2 tsp in 1 gallon water poured into mound. Strong odor — apply outdoors.
Example
0.5 oz
per gallon
⚗️ Mixing Calculator
Enter your sprayer size and target rate — get the exact amount to pour. Backpack, hand sprayer, hose-end, or skid unit.
⚠️ Safety
- ⚠ Very strong sulfur/fish odor — apply outdoors
- ⚠ Toxic to birds at high concentrations
- ⚠ Do not use on edibles unless specifically labeled
- ⚠ Systemic — present in plant tissue after application
🐛 Pests This Treats — Learn More
Click any pest to view its full identification guide, biology, and treatment options.
🌿 Environmental & Ecological Impact
⏱️ Residual & Re-entry Timeline
🔹
Apply
Follow label mixing and application rates
🔸
Re-entry: 24 hours
Keep people and pets out of treated area
🟢
Effective period: 10–15 days
Active residual — killing or repelling target pests
🔄
Reapply
Re-treat when pest activity returns or residual expires
🔄 Alternatives & Related Products
Same chemical class or different approaches to the same pests.
🔄Malathion
Same class: Organophosphate
↔️Same class: Organophosphate
Pyrethrin
Different approach: Botanical Pyrethrin
↔️Different approach: Botanical Pyrethrin
Boric Acid
Different approach: Inorganic
Different approach: Inorganic
❓ Frequently Asked Questions
Q: Is acephate safe for pets?
Follow the product label. Keep pets out of treated areas until completely dried (2–4 hours for sprays). Once dry, treated surfaces pose minimal risk to dogs and cats.
Q: Can I use acephate indoors?
Check the specific product label — formulations vary. Baits and dusts often have indoor labeling; concentrates and granulars are typically outdoor.
Q: How long does acephate last after application?
Residual varies by formulation, surface type, weather, and UV exposure. Indoor applications last longer than outdoor. Check the product label for re-application intervals.
Q: What should I do if exposed?
Remove contaminated clothing, wash skin with soap and water. For eye contact, rinse 15–20 minutes. For ingestion or severe symptoms, call Poison Control (1-800-222-1222). Have the product label available.
📋 Safety Data Sheet (SDS)
Orthene 97 — Safety Data Sheet
View the official SDS document for this product directly on the CDMS label database.
📚 Sources: EPA Pesticide Labels · NPIC Pesticide Info
Published: Jan 1, 2025 · Updated: Apr 7, 2026
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Reviewed by Derek GiordanoContent reviewed by a licensed pest management professional and cross-referenced against EPA, university extension, and manufacturer technical data. Last reviewed: April 2026.