Could clove oil be used to nonsurgically sterilize male dogs?

The main tool for controlling the stray dog population — surgical castration — requires trained surgeons, sterile facilities, anesthesia, and post-operative care. In many places, that's simply not available. Two new studies suggest that injections of clove essential oil could offer a non-surgical sterilization method. The post Could clove oil be used to nonsurgically sterilize male dogs? appeared…