Bait is considered one of the most effective methods for killing ants. Bait works even when you can't find the nest and unlike contact pesticides, bait can wipe out the entire colony by destroying the queen. Bait is designed to taste like food, so it is enticing to ants. Once worker ants find the bait, they bring it back to be shared with the queen and the rest of the colony. Once the queen and other ants eat it, the whole mound dies. As a means to ensure that the bait is shared with all the ants in the colony, there is a delayed reaction before the bait begins to take its full effect and kill all the ants in the colony. Therefore, bait is considered to be more effective than contact killers since bait is shared with the entire colony, while contact killers will only kill ants that come into contact with the product. With AMDRO, it's game over for ants. How long does Ant Bait take to work? The active ingredient in AMDRO works with delayed action, ensuring worker ants have time to share the bait with the colony. Typically, the bait will begin to kill the queen within one week of application and will kill the colony within two weeks of application. What is the best way to treat for ants I found inside my home? If there are ants already inside your home, we recommend doing two things. First, use one of the AMDRO Kills Ants products listed for indoor usage above to kill the ants that are already inside. Second, apply AMDRO Ant Block Home Perimeter Ant Bait granules around the outside of your home to prevent ants from getting inside. Do I have to reapply granules if it rained after being put down? For best results, we recommend not applying the product when the ground is soaking wet or when heavy rains are expected. Are the ant killer granules safe to use in a vegetable garden? Due to the active ingredients in the granules in our AMDRO Ant Block Home Perimeter Ant Bait, these items are not permitted for use in vegetable gardens. Therefore, vegetable gardens are not an application site where these products can be used. However, we would recommend using any of the Sevin Bug Killer items in your vegetable garden. Is AMDRO safe to use around pets? While instructions vary by product, it is recommended that you do not apply the product while pets are in the treatment area. However, you can let your pets back onto treated areas once the dust has settled. Is AMDRO safe to use around livestock? After applying AMDRO Ant Block Home Perimeter Ant Bait, we recommend that you do not graze or feed treated lawn or sod clippings to livestock. AMDRO Ant Block Home Perimeter Ant Bait kills ants outside so they can't come inside. Ants think this specially formulated bait is food, so they carry it back to the colony to share. Once the queen and other ants eat it, the whole mound dies. Use it on lawns, landscaped areas, or around structures to rid your home of ants.Apply in a one foot band around the perimeter of your home. One 24 oz bottle covers up to 1080 linear feet. Made in the USA.AMDRO Ant Block kills 25 ant species: Acrobat ants, Allegheny mound ants, Argentine ants, bigheaded ants, black turf ants, carpenter ants, citronella ants, cornfield ants, crazy ants, field ants, fire ants (imported and native), ghost ants, harvester ants, honey ants, lawn ants, little black ants, nuisance ants, odorous house ants, pavement ants, Pharaoh ants, pyramid ants, Southern ants, thief ants, white-footed ants and the Texas leaf cutting ant.