Cedar will help some. Always remember not to put straw or bedding of any type in the dog house as this will retain moisture and cause fleas to remain longer.
small cedar mulch helps eliminating terminates. first trying cedar mulch on the ground. try to use spray on the peet dog and to use cedar shavings on the dogs bed. add cedar vinegar to your dogs bathing water.
it is a good question. i would like to tell the truth. cedar can used,but extreem care must be taken because they are very toxic. but instead of that we can use a good medicine.