Dear woman with the groceries, how are the ants?

I was lost in the Zona Romantica with a map I could not read and a bus I could not find. A woman carrying groceries said, follow me, and walked fifteen minutes out of her way, talking the entire time about her garden. Tomatoes, a lime tree, a problem with ants. She pointed at the correct stop and waited until the bus came. Then she went back the way she had come. I did not catch her name. I know a great deal about the ants.