So I live in CA with my mom,dad, and sister. My mom is having a new garden put in, so she had the lawn ripped out they laid down cloth etc. but when the mulch which was supposed to be mixed wood chips was put down it smelled really gross like, it smelled sour. Thats as best as I can describe it. Then later we had these little bugs that looked like fruit flies all in our house and were killing 50+ of them for an hour. The odd thing is they are attracted to light, like moths, but they are smaller and look identical to fruit flies. I was wondering what the hell these things are and what i can do to get rid of them.