Can I do anything in my cat’s environment to reduce the risk of heartworm? - Animal Hospital of Statesville
Preventing standing water is essential. You can use area mosquito sprays and things like that, and they are safe if you follow directions. Anything you can do to keep the mosquito population down in the area helps. Usually, that is combated by avoiding standing water in those areas, dumping standing water from your flower pots, and other things like that.