Pest/bug control tenant hired company

[Nadir M.]

I have a long term tenant that seems to state that they’re having ants, spider, and wasp problems. She went ahead and hired a pest company, signed a contract for the next 18 months, to come and remedy the problem. She called and let me know that she did that. In my lease it states that the tenant, after 10 days, is responsible for all problems related to pest control. It did not include the wordage wasp, ants, spiders but I’m sure it relates to all “no limited to”. Is the tenant responsible for all interior and exterior pest problems or is it strictly interior? Her husband is allergic to wasps and I did take care of one nest but she’s states there are like three more nests. She also stated that her kids can’t play outside because of the misquotes and spiders that are outside. I guess from a landlords perspective, I’m not quite sure what I owe to the tenant. Apparently, wasps have been bad this year. I do not plan on paying for the service that she signed up for but also not clearly sure how I can help. A lot of the pest problems were never a major problem until recently. 

Thank you