Saguaro Horticulture: Saguaro Problems, Pests And Disease

The saguaro cactus (Carnegiea gigantea) is a distinctive and desirable plant for southern Arizona landscapes. When a saguaro is deformed or diseased it is no longer an asset and it may present a danger of collapse. Unfortunately it is usually not possible to remedy a sick or damaged saguaro. Saguaro problems may originate from cultural issues such as improper planting, failure to establish, and physical damage. Saguaro cultivated in Arizona are not troubled by many pests and diseases. However, a rot disease called bacterial necrosis is a common cause of death. Most of the saguaro problems and pests discussed here can be accompanied by bacterial necrosis.