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Be a part of OSU's commitment to the environment!
Discover urban horticulture and check out the partnership between OSU, Oregon Tilth and organic farmers.
It’s about making changes and informed choices, even small ones, that improve the quality of our lives and of the planet for future generations.
I have been bothered by indoor ants throughout the year. They will come into the kitchen on the counters and underneath the sink and a bathroom on an outside wall. They also get in to a bathroom on the same wall without a window. I have drawn a line of Diatomaceous Earth around the foundation of the house and it pretty much has taken care of the problem. This morning the sink in the windowless bathroom was completely black with the ants. I sprayed them with a pesticide and cleaned it up. Several hours later there was a 'swarm' of them around the base of the toilet.