Yes, Repels-All Liquid Concentrate can be used on mulch and in landscape areas to repel target animals. Please refer to the product label for more information.
For rodents inside it is best to use snap traps and glueboards so you can control where they are going to die. You should also seal up all cracks and crevices where rodents may be able to enter the structure. Tamper-resistant bait stations with a rodenticide outside would also help if they are coming and going. We have a guide below that can help as well.
https://www.domyown.com/rat-prevention-guide-a-526.html
Yes, Repels All is safe to be used on lawns, ornamentals, bushes and flowers.