Q: Three days ago I noticed a spot in my bermudagrass that was bleached blond. The next day there was another blond circle. It appeared overnight.

These look like crop circles. Are aliens landing in my yard at night?

A: Is there any chance the blow-up pool in the second picture was previously sitting on the yellow spot?

The gardener’s response:

“Well, now I feel like an idiot. I realized minutes after I sent the email that I had put the pool on the first spot for about an hour to find a leak. The next day I put it where the second circle was so I could mow around it. The 3rd day we had a storm and the pool blew off the cement and was where the 3rd spot showed up.

“The spots are turning green again now.”