Current status of biological control research of rice sheath blight disease in Vietnam

摘要

Sheath blight (ShB) caused by Rhizoctonia solani K#eta#hn is considered as the most important disease of rice in Vietnam. Due to lack of high level of resistance in rice to ShB, it has become necessary to find alternative means to manage the disease. This led to the beginning biological control research of ShB disease in Vietnam an early 1980's. In 1996, much research has been done on beneficial bacteria. It included screening antagonists; evaluating effectiveness of beneficial bacteria targeted different diseases in greenhouse and field. Some of them have been demonstrated in a large area. Biological control bacteria are expected to colonize and persist on plants and to inhibit the ability of plant pathogenic agents to cause damage and disease. The study aims to present status in fundamental and practical research for controlling ShB disease using beneficial bacteria and prospects for general schematic strategy to control rice ShB disease.