Needy Tenant - How to respond to unreasonable request?

[Scott J.]

I have, in many ways, a great tenant. They've been renting for 3 years and have never even had a late payment. It's a mid-range property in my area ($1,200/mo.) and I'm really lucky to not have a vacancy for this long.

Although over the last year they've been sending more and more texts to "fix" things. Some are reasonable, which I've promptly addressed. But others fall firmly under the tenant's responsibility.

Please help me respond to this message from last night. I'm not sure if it's best to mention the increasing requests, or simply to say why this one isn't valid.

Their message was that there have been ants in the house, and they would like me to spray, or even TENT (!) the house.

Ants are part of life this time of year, and there isn't an infestation by any means (I worked in their house last week) and live next door.

How should I respond to this request? Whether it's simply stating that is their duty, or addressing my larger concern of them constantly asking me to do little things like this.

Thank you very much.