Description Country Vet Metered Fly Spray Refill insecticide for use with the Flying Insect Kit. Contains pyrethrins, a botanical insecticide that kills flies, mosquitoes and small flying moths. For use in food handling and preparation areas of restaurants and food processing plants, stores, farms, dairies, barns, kennels, factories, schools, hotels, motels, offices, ships, planes, supermarkets, food warehouses, bottling plants, hospitals, nursing homes, day-care centers, milk and egg handling areas of dairies and chicken houses. Kills flies, mosquitoes, gnats and small flying moths.