<human>: Could you distill the essence of the text into 1-3 sentences?

I've live in a rental in Montana on a great lot that has lots of space for my gardening habit. (I live in small city -80,000ish). I grow a lot of my own food (organically). 

My rental contract leaves me responsible for general lawn care (I mow, water, etc).  Last summer I walked out my back door to do some weeding, and saw the maintence guy spraying all kinds of pesticides and fertilizers all over the yard. They didn't call me in advance, they killed the entire honeybee population in the yard, and sprayed fertilizer over my once-organic garden. 

I called to complain, but didn't get very far. I was told they have to keep on top of weeds and whatnot. I volunteered to do this at my own cost, with products I feel are more safe. Stonewalled there too.
<bot>: Does anyone know what my rights are regarding lawn/garden pesticides/fertilizers as a renter? What if I claim allergies or side effects?