How long can mothballs repel dogs? Mothballs can repel dogs for about two months, but breeders need to use them carefully. Mothballs have certain toxicity and irritating odor, which have some effect on the health of dogs and need to be used in moderation. It is recommended that breeders can use lemonade and pet deodorant to repel dogs. These things contain irritating odor can repel dogs, but do not contain toxic substances to the health of the dog. If the breeder does not want the dog to go to a certain place or room, the breeder can install a guardrail to prevent the dog from entering. This ensures that the dog is blocked and also avoids any impact on the dog’s health.
