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.

Bt israelensis

⚖️ 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

Mosquito Dunks — Summit Chemical — consumer donut-shaped

Mosquito Bits — Summit Chemical — consumer granular

VectoBac WDG — Valent BioSciences — professional

Gnatrol WDG — Valent — fungus gnat specific

🎯 What It Kills

✓ Mosquito larvae✓ Fungus Gnat larvae✓ Black Fly larvae✓ Midge larvae

⚙️ How It Works

Bti produces Cry4 and Cry11 proteins active against mosquito and gnat larvae specifically — not caterpillars. Completely safe for fish, frogs, birds, and beneficial insects.

⚗️ Mixing & Application

Mosquito Dunks: 1 dunk per 100 sq ft of water. Replace monthly. Mosquito Bits: soak in water overnight, use strained water to drench soil for fungus gnats.

⚗️ Open Mixing Calculator →

⚠️ Safety

⚠ EXTREMELY safe — no toxicity to fish, birds, or beneficial insects at any practical use rate
⚠ Safe in fish ponds, bird baths, and pet water dishes
⚠ Must contact larvae in water — no residual on dry surfaces

📋 Safety Data Sheet (SDS)

📄

Mosquito Dunks — Safety Data Sheet

The SDS document preview will appear here once the first-page image is uploaded to your server.

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

📄 Search for this SDS on CDMS →

📄 Mosquito Dunks — 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

Bt israelensis — Mosquito Dunks, Bti