Tenant saw one roach and wants apartment fumigated

[Ryan Redenius]

I have a tenant of two years who wants me to fumigate the apartment after she killed one roach in her unit this morning.  She keeps her unit very clean, so I want to keep her as a tenant, but she does tend to overreact and ask for a lot.  I get not wanting to live in a unit with roaches, but my immediate reaction is that one roach in 2 years doesn't signify a larger infestation that requires action on my part.  She is on a standard city of Chicago lease.

The unit above her is clean as well.  There is a garden unit below that is a little more buggy, but I think that most garden units are due to moisture.  I've never had any other complaints from tenants.

She wants me to take action before this becomes a larger problem, but I don't think it's justified today.  Who is right?  Appreciate any advice as to how you all would address this.  Thanks.