甘薯丛枝病是福建甘薯上的主要病害之一,其病原为类菌原体(MLO)。近年来,此病在福建沿海部分薯区发生普遍,危害很大。1982年莆田县的下房、上林、赤歧、铁炉大队损失严重,早薯因病每亩较常年减产2—5成。如何控制其危害已成为当务之急。 三年来,我们对如何防治此病进行了一些调查研究。1982年秋在莆田县下房等大队 Sweetpotato birch disease is one of the major diseases on sweet potato in Fujian Province. Its pathogen is MLO. In recent years, the disease occurred in some coastal areas of Fujian common, great harm. In 1982 Putian County off the house, Shanglin, Chifu, Ironforge brigade suffered serious losses, early potatoes due to illness than usual peanut production cuts 2-5%. How to control its harm has become a top priority. In the past three years, we conducted some investigations on how to prevent and treat this disease. The fall of 1982, Putian County, such as barracks