I told my Mother, who lives in Terrill, Texas. To use some on the Fire Ants "Hills." They truely die, I don't know why, but they do. I learned about it somewhere on the web; but I don't recall where. And I also read it in a "Jerry Baker" gardening book too. When it Rains, it just washes it into the soil more. But just reapply it once a week.
Blood Meal is something you would like to use in your garden; because all plants love it!
I had a friend in Arizona who told me that one of his co-workers lost his dog from eating Blood Meal.
They put it out one day, and the dog got into it and ate it. The dog's blood pressure skyrocketed, he was so sick, the family rushed him to the vet who worked all afternoon unsuccessfully to save his life. Sad.
I won't use it in my yard for just that reason. It may be good, but not at the cost of my animal's lives.