Best Mosquito Larvicide Dunks, Bits, Pouches & Tablets

The mosquito larvicide, whether in the form of  a dunk, granule bit, pouch or tablet, is one of the most effective (and cost effective) ways of getting rid of mosquitos caused by having pockets of water bodies outside.

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In this round up article, we’ve put together some of the most effective mosquito dunks, bits, pouches and tablets that will help you greatly in your battle against the pesky mosquitoes outdoors. Let’s check them out.

1) Summit Natural Mosquito Dunk

The Summit Natural Mosquito Dunk is formulated using an active ingredient called the Bacillus Thuringiensis Subspecies Israelensis, also known as BTI. Which basically is a bacteria that kills mosquito larvae but does not cause any harm to humans, pets or other living creatures.

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It works by slowly releasing a mosquito larvicide at the water’s surface which slowly and gradually descends down the water. During which the larvicide gets eaten by the mosquito larvae, killing them before they can develop into disease-spreading mosquitoes.

Each Dunk can treat up to 100 square feet of water surface (regardless of depth) for over 30 days effectively. For smaller areas of water, simply break the Mosquito Dunk into smaller portions.

  • Non-toxic
  • Kill mosquitoes larvae before they grow into adult mosquitoes
  • Each dunk kills for more than 30 days
  • 100 square feet of water coverage
  • Approved for use in organic production

2) Terro T1210 No Mess Mosquito Larvicide Pouches

The Terro Mosquito Larvicide Pouches works by dissolving quickly in water, releasing a larvicide that kills mosquito larvae, hence preventing them from growing up into biting adult mosquitoes.

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Its unique dissolvable pouches help eliminate any mess or dust that may result from having to break open packages. It is safe to be used in areas with aquatic life, plants, pets, humans and any wildlife.

A single pouch can treat up to 50 square feet of water surface for up to 2 months in a contained environment and up to 4 weeks under normal environment.

  • Mess-free dissolvable pouch
  • Long-lasting for up to 2 months
  • Can be used in areas used by people and pets

3) Clarke Natular DT Mosquito Larvicide Bi-Layer Tablet

This Mosquito Larvicide Tablet by Clarke Natular® is designed specifically to get rid of container-breeding mosquitoes. It features an active ingredient Spinosad which is a natural bacteria proven to control mosquito larvae effectively.

It is formulated to start killing mosquito larvae within 24 hours and each of their Bi-Layer tablets can last up to 60 days.

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This product is ideal for use in areas that are intermittently filled with water (i.e. drains, tire tracks, potholes) thanks to its slow release layer that stops working when it’s dry, and begins working again when wet.

Each purchase comes with 12 tablets where each tablet can effectively treat up to 50 gallons of water for about 60 days.

  • Each tablet treats up to 50 gallons of water
  • Starts killing within 24 hours
  • Each application can last up to 60 days
  • Can be applied to areas with fishes and plants

4) Mosquito Torpedo by Pre-Strike

The Mosquito Torpedo by Pre-Strike works by preventing adult mosquito development using the Insect Growth Regulator that is slowly and continuously released in the water.

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To use, simply drop the Mosquito Torpedo into any standing water and it will sink to the bottom, killing any mosquito larvae before they can further develop and reach adulthood. Each mosquito torpedo deployed can last up to 2 months of killing. 

  • Last up to 2 months
  • Does not harm fish, plants, humans or pets

5) Bactimos Mosquito Control Dunks

The Bactimos Mosquito Control Dunk is a ready-to-use sustained-release larvicide that uses the effective Bacillus Thuringiensis Israelensis (BTI) biocontrol agent to kill mosquito larvae in standing water. 

When it is deployed on any water surface, the mosquito briquets will float right below the water surface, slowly releasing the BTI which gradually settles in the water. During which it gets consumed by mosquito larvae, killing them before they get the chance to grow into flying mosquitoes. 

  • Ready-to-use
  • Safe around humans and pets

6) Summit Mosquito Control Bits

This Mosquito Bits by Summit is designed for fast annihilation of the mosquito larval. These corn cob granules by Summit are coated in BTI to kill larvae fast without causing harm to the plant or fishes. 

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On top of killing mosquito larvae, they also work in killing Fungus Gnats found in the pots and plant beds.

To apply, simply sprinkle the mosquito bits directly onto the surface of the soil. For use against fungus gnats, mix the bits into the soil prior to planting.

Note: This is an effective solution to kill mosquitoes quickly. Once the level is brought down, consider using a mosquito dunk for long term control.

  • Also kills Fungus Gnats
  • Kills mosquito larvae fast
  • Harmless to humans, pets, plants and fishes

7) Bonide Water Soluble Mosquito Beater WSP Larvicide Pouches

This Mosquito Beater Pouch is a microbial larvicide designed to kill mosquito larvae in standing water such as flower pots, ponds or any area where water can be collected unknowingly.

It uses BTI as its active ingredient to kill  insect larvae without causing any harm to fishes or other beneficial aquatic lives.

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They are packed in a water-soluble pouch which makes application easy. Simply toss a pack on the water surfaces that need to be treated. The pouch will dissolve after coming into contact with the water, slowly releasing the granules into the water to be ingested by the mosquito larvae.

Each purchase comes with 24 water soluble pouches, and each pouch can provide up to 50 square feet of water treatment. Each application can kill mosquito larvae for up to two weeks.

  • Treats up to 50 square feet of water surface
  • Last up to 2 weeks
  • Ready to use

8) Bonide 5612 Mosquito Beater Repellent Granules

This Mosquito Beater Granular Repellent by Bonide is a ready-to-use granule application that starts killing within an hour and each treatment can last for up to 3 weeks.

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No pre-mixing with water is required. Simply spread the granules directly to the ground from the container, and we are all set.

With content made out of essential oils and other active ingredients, this product gives off a pleasant scent while working to kill the larvae.

  • Provides up to 4,000 square feet of coverage
  • Formula lasts up to 30 days
  • Has a pleasant scent
  • Safe to apply around pets and children
  • Comes in a shaker applicator


Depending on your current situation, one form of the mosquito larvicide may be more ideal than the other. For example, for a pond or spots in the backyard where there is always stagnant water, a mosquito dunk or pouch will make more sense as it's long lasting and can provide a wider coverage.

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For small water catchment spots where it's only wet during wet weather (i.e. tire, certain spot in the garden, tablets or bits might work better as they only work when comes into contact with water. For land areas like in the garden, the mosquito bits/granules will make more sense as compared to the dunk/pouches.