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Product benefits

  • Targeted Support
  • Continuous Release
  • Long-Lasting
  • Easy Setup
  • Mosquito Control
  • Fungus Gnat Control
  • Organic Matter

This product may offer additional benefits beyond those listed.

Frequently purchased together

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Summit Mosquito Dunks Organic

Vegetative Stage Flowering Stage Indoor Outdoor Regular Watering Coco Coir Safe Soil Soilless Insecticide
$23.26
$23.26
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Product benefits

  • Targeted Support
  • Continuous Release
  • Long-Lasting
  • Easy Setup
  • Mosquito Control
  • Fungus Gnat Control
  • Organic Matter

This product may offer additional benefits beyond those listed.

Description
Summit Mosquito Dunks Organic is a microbial larvicide dunk for standing-water mosquito larvae control, a biological mosquito control option for ponds and water-holding containers.

Each dunk is a biodegradable, donut-shaped floating briquet designed to sit on standing water and release a long-term biological mosquito larvicide over time. The result is targeted, sustained-release mosquito control that focuses on the larval stage, helping reduce emerging adult mosquitoes from the water sources around homes, gardens, farms, and outdoor living spaces.

The active ingredient is Bacillus thuringiensis subspecies israelensis (Bti), a naturally occurring bacterium used as a Bti larvicide for mosquito larvae. In simple terms, it’s a bacterial active ingredient that is toxic to mosquito larvae and is described as harmless to other living things. Summit Mosquito Dunks are also suited to organic production, making them a practical fit for growers and homeowners who want an organic-friendly mosquito larvae control approach without harsh, broad-spectrum chemistry.

Summit Mosquito Dunks are designed for use anywhere water collects and remains for periods of time, including rain barrels, birdbaths, koi ponds, animal watering troughs, planter reservoirs, tree holes, rain gutters, and similar standing-water sites. They are also described as appropriate for areas where animals and pets drink or bathe, and as having no effect on plants, fish, frogs, turtles, or beneficial insects. Because this is mosquito larvae control, it is specifically aimed at the aquatic larval stage rather than adult mosquitoes.

This is a good fit for anyone looking for a standing water mosquito control product that combines a sustained-release microbial larvicide, a biodegradable floating dunk format, and a Bti larvicide active designed to target mosquito larvae in common water-collection hotspots.

Product benefits: Vegetative Stage; Flowering Stage; Indoor; Outdoor; Regular Watering; Coco Coir Safe; Soil; Soilless; Insecticide; Targeted Support; Continuous Release; Long-Lasting; Easy Setup; Mosquito Control; Fungus Gnat Control; Organic Matter.

Guaranteed analysis: Bacillus Thuringiensis Israelensis: 10.31%; Inert Ingredients: 89.69%.

Specifications: Organic: Yes.

Guaranteed Minimum Analysis
Bacillus Thuringiensis Israelensis 10.31%
Inert Ingredients 89.69%

Specifications
Organic Yes

Frequently Asked Questions
What makes bacillus thuringiensis israelensis uniquely effective for controlling fungus gnat and mosquitoes?

Bti is uniquely effective because it targets only the larvae stage of pests like fungus gnats and mosquitoes while leaving plants, beneficial insects, and soil microbes unharmed. Its specificity sets it apart from broader solutions, allowing growers to control pests without disrupting the garden ecosystem.

Read the full guide

Why are inert ingredients important if they aren’t the active ingredient?

Inert ingredients matter because they control how a garden product mixes, spreads, sticks, and performs on plants, making them unique from active ingredients that only describe the main “job” of the product. When inert ingredients are too harsh or poorly matched to your grow conditions, they can cause leaf burn, residue, or root-zone stress that looks like a nutrient problem but is actually a delivery and compatibility issue.

Read the full guide

Safety & Technical Documents

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