There are many things in your yard that can help the breeding of mosquitoes. Anything that has standing water in it will be come a new home to the bugs. There are a few home remedies one can try like putting a small amount of olive oil in standing water. The olive oil is thought to keep them from being able to grow and fly. Do some research online to find other ways and products to put in your ponds, pools and other standing water sources to help keep the mosquitoes away.