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Kimberly from Alexandria, Va writes

Will Eco PCO WP-X be a suitable residual product for controlling ants in addition to these baits?

I've had ants (look like odorous or sugar ants) coming in various spots in my home. I've located the areas along the house foundation outside where they are trailing from and treated with the Maxforce baits (granules and gels) and these Optigard/Advance baits for months. The trailing stops but the ants return day/weeks later. Not sure why they keep coming into the house, they have not found food for months and there are only one or two at a time, wandering aimlessly, though the baits outside do attract a dozen or so until they die off, then they appear in the house again and the cycle repeats. From your materials looks like new ant colonies could be moving in, and you recommend spraying something around the home perimeter. I was hoping for something not so toxic, and wondered about the Eco PCO WP-X for this. If not, what else would you recommend? I have a dog and practice organic gardening so was trying to stay away from toxic products, but am desperate to rid us of these ants.


Eco Pco WP-X can be used as a residual spray outdoors for ant control. Any ants that cross over the treated areas will be eliminated but the residual will not spread back to the colony. You should also take a close look at the area that seems to get invaded so often to determine what exactly is bringing the ants to that particular area. Is there a high level of moisture? Is there a mulched flower bed? Plants nearby that could be hosts to aphids? Please take a few minutes to read our article Integrated Pest Management to learn more about taking a holistic approach to pest control. Pest control should not equal pesticides alone. There are many things you can do to make your property less favorable to pest insects. You can also read Ant Prevention Quick Tips and How to Get rid of Odorous House Ants to learn more about ant control.

Answer last updated on: 11/15/2011

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