论文部分内容阅读
胡萝卜斑枯病的病原菌可在种子、病残体及土壤中存活越冬,腐熟的粪肥中未分离出病原菌。带菌的种子和土壤是胡萝卜斑枯病的初侵染来源。
Pathogen of carrot spot blight can survive in the seeds, disease residues and soil overwintering, decomposed manure does not separate pathogens. Fungicidal seeds and soil are the primary sources of infection of carrot spot blight.