GMT - November 6, 2015, 9:05 am
Dragon fruit (Hylocereus undatus), commonly called pitaya, is a member of the cactus family known for its ornate and colorful fruit. This Mexican native thrives in the tropical regions of Asia, North America and South America. The stems of this plant can grow up to 20 feet long, while its flowers can reach almost 1 foot in diameter and length. Several bacterial and fungal pathogens cause stem rot diseases on dragon fruit plants, diminishing their aesthetic value and threatening the survival of the entire plant.