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Maxforce Pro Roach Killer Bait Gel (Hydramethylnon)
4.5 out of 5 stars (81)
Multiple sizes available
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Roach Gel Bait with hydramethylnon. Slower kill than the Fipronil (Maxforce FC) formulation, but found to spread more thoroughly through the roach population.

Maxforce Complete Granular Bait
4.5 out of 5 stars (96)
Multiple sizes available
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A professional granular insecticide bait that treats many insects including ants, silverfish and roaches for lawns & gardens and inside the home.

Extinguish Plus Fire Ant Bait
4.5 out of 5 stars (64)
Multiple sizes available
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Fire Ant bait with IGR and an added insecticide that kills fire ants and prevents the queen from laying fertile eggs.

Amdro Pro Fire Ant Bait - 25lb. bag
3.5 out of 5 stars (7)
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Kills the entire fire ant colony including the queen.

Amdro Fire Ant Bait
5 out of 5 stars (4)
Multiple sizes available
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A granular insecticide that kills fire ants and the queen fast to destroy the mound.

Amdro Yard Treatment Fire Ant Bait Granules
5 out of 5 stars (1)
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A granular insecticide made for broadcast application that will last all season long for the lawn and garden.

ProBait Ant Bait
5 out of 5 stars (1)
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An instant kill for fire ants and tough ant problems with a fast kill action.

Amdro Ant Block Home Perimeter Ant Bait Granules
5 out of 5 stars (4)
Multiple sizes available
Free Shipping!
An insecticide ant bait that kills carpenter to fire ants and stop the ant invasion before it starts in lawns and landscaping areas.

Amdro Yard Treatment Bait Shaker Bag
5 out of 5 stars (1)
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A granular insecticide bait that provides season-long fire ant control in a convenient, easy to use shaker bag.


Hydramethylnon is a metabolic inhibitor with a unique delayed-action property to maximize control of ant and roach populations.

What is hydramethylnon?

Hydramethylnon is an odorless, yellow-orange crystalline solid, functioning most frequently as the active ingredient in ready-to-use roach and ant bait formulations. Hydramethylnon bait stations, bait gels, and granulars target a wide variety of ant and roach species both indoors and outdoors.

How does hydramethlynon work to control pests?

Hydramethylnon is one among a group of pesticides known as trifluoromethyl aminohydrazones, or, “metabolic inhibitors”. While the majority of insecticides attack the insect's central nervous system to cause nerve excitation, metabolic inhibitors like hydramethylnon attack the insect’s metabolic systems, resulting in decreased energy, lethargy, and the inability to perform basic life-sustaining functions such as feeding and grooming. Symptoms are delayed, however, with death typically occurs within 24 to 72 hours. This unique property allows for affected carrier insects to return to their colony or harborage and spread the poison to others:

  • Ant Control. Ant bait or granulars containing hydramethylnon are sprayed or spread over the infested area. Ants soon retrieve the bait and return to their colony. The affected ant then serves as a poison carrier to other ants either by contact or through bait sharing. In this way, bait effectiveness is maximized.
  • Roach Control. Roach bait or gel containing hydramethylnon is planted or applied in areas of highest travel (most often kitchens and bathrooms). Roaches ingest the bait or track through the gel to trigger hydramethylnon poisoning. Roaches then act as poison carriers by coming in contact with other roaches. Poison is also effectively spread throughout roach colonies when the affected roach dies and the other roaches feed on its carcass or feces
Hydramethylnon Products Hydramethylnon is a “safe-for-home-use” insecticide.

Hydramethylnon is classified as a General Use Pesticide (GUP), meaning that it is unlikely to harm the environment as long as you follow the directions on the label. Anyone can safely use a GUP, not just the pros.

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