[The disease and its control on zingiberaceous plants in South China Botanical Garden]

The common diseases on the zingiberaceous plants and their occurrence and damage as well as control have been investigated in the ginger garden of South China Botanical Garden recently. The results show that 2 bacterial and 13 fungous diseases are common. To control them effectively, cultural methods such as selecting loose, fertile soil as planting field with good drainage and proper shade; applying healthy and vigor seeds, seedlings and rhizomes for propagation; regulating plant density; fertilizing reasonably, practicing in rotation; irrigating moderately; sanitizing the field opportunity are mostly recommended. The application of chemical and biological pesticides to protect the beneficial organisms is also stressed.