Natural mosquito killer?

Oil will do it. You can also buy those bacillus thyrungitis (sp) donuts they sell at agricultural stores and throw those in the puddles. They are some sort of protozoan or something that kills the larvae.

It won't do any good to just use clorox or oil on any puddles you see. There are a hundred others that harbor mosquito larvae.

To help reduce the mosquito population around your home, try to eliminate all sources of standing water. Some common places you might not think about are clogged gutters, bird baths, uncovered rain barrels, old tires or buckets or anything else sitting around your yard that holds water.

I don't know about kill it but to keep away mosquito's you an use straight vanilla oil on your skin and things so I don't see why it would hurt to try it out beside the price .. I found it on amazon.. it has to be the real stuff :)

If you use the old fashioned marigolds in pots , they will keep the bugs away, but you have to make sure that they have a smell because the new ones have no scent.