Diy Flea Spray For Dogs . Homemade flea spray with lemon: Let it sit for 5 to 10 minutes and rinse it out thoroughly. 8 Photos Homemade Flea Spray For Carpet And Furniture And Review Alqu from alquilercastilloshinchables.info How to make the best homemade flea killer for dogs: Here are some of the best flea remedies for you to try at home: 2.) pour the mixture into a spray bottle.