Rustic Wind, the gelding who fell while trying to hurdle a fence at Bowie Saturday in a bizarre accident, was destroyed Sunday after being taken to the New Bolton (Pa.) Center.

Rustic Wind was startled while being led back to his barn after having finished second in an earlier race. He broke loose, started running around the infield, then tried to hurdle a fence. The horse flipped over and landed on his back and was not able to get up.

Dr. James Stewart worked over the stricken animal for more than an hour while the racing at Bowie was held up. The decision to take him to the New Bolton Center, a veterinary hospital specializing in horses, came after Stewart could not get him to stand. At the hospital it was determined the horse had suffered a possible brain injury, and because he was in pain, he was destroyed.

Rustic Wind was owned by Herman F. Blake of Richmond, Va., and was trained by former jockey Denis Logan. He had had a number of impressive workouts before his first race Saturday.

Logan, who came to America in the mid-1960s from County Cork, Ireland, said yesterday, "Rustic Wind was meant to be a good horse. If he hadn't missed a crucial work last week, he would have won his maiden start. My wife Linda was of the same opinion that this was the horse that may have taken us out of the struggling class. But that's life. That's racing. You have to pick yourself up and carry on. You have to be strong to make it."