What can a landlord do with "minor" violations?

[Mary Joe]

Extermination service.

It spells out on the lease agreement that the tenant agrees to let exterminators service the apartment monthly. I just realized that the tenant has been refusing the exterminators entry to the unit for months now. He said he is not home during the day and he does not feel comfortable letting the exterminators enter when he is not there.

I can understand that. Besides, I don't want the tenant to blame the exterminators for stealing his belongings and demand compensation from me.

I am concerned about roaches infestation in the unit. What can a landlord do under these circumstances?