Preheat oven to 350 degrees F. Line a 9 x 9 inch square baking pan with aluminum foil and set aside.
Separate string beans into 4 bundles of 12 beans each. Wrap 1/2 slice of bacon around each bundle and place in prepared pan, bacon seam side down. Sprinkle each bundle with 1/4 teaspoon garlic powder and 1 teaspoon brown sugar.
Bake at 350 degrees F for 30 minutes. Bacon will not be crisp but will be cooked.