How often do lawns need to be treated with pesticides in suburban NJ?

I live in an HOA. I spent a lot of time sitting outside and have not noticed any pest issues. They have now treated the lawn 3x in the last 4-6 weeks. It is annoying because now I can't go on the lawn with my dog (He does know not to pee on that area...a little trick I figured out that he won't pee where he eats...so I scatter food around occasional..and he doesn't pee there).

2016-06-17T11:54:31Z

*before anyone complains the dog shouldn't be out there with me because he will pee on the lawn...

Tyler Brown2016-06-17T17:42:08Z

Try once a week.