以串珠镰刀菌、瓜果腐霉等7种病原菌为供试真菌,用生长速率法和菌丝干重法对白丁香和大叶黄杨提取物的离体活性进行测定。结果表明:在供试质量浓度为0.1 g/mL时,白丁香乙醇提取液对7种供试病原菌菌落和菌丝生长量的抑制作用强,抑菌率分别在60%和79%以上。大叶黄杨乙醇提取液对7种病原菌菌落和菌丝生长量的的抑制作用较强,抑制率分别在55%和58%以上。 Seven kinds of pathogens such as Fusarium moniliforme and Pythium melilotoides were used as test fungi. The in vitro activity of extracts of Clove and Euonymus japonicus was determined by growth rate method and mycelium dry weight method. The results showed that at the concentration of 0.1 g / mL, the ethanol extract of Ligusticum chuanxiong inhibited the growth of colony and mycelium of the seven tested pathogens, and the inhibitory rates were above 60% and 79%, respectively. The ethanol extract of Euonymus japonicus had a strong inhibitory effect on the growth of colonies and mycelia of seven pathogenic bacteria with the inhibition rates of 55% and 58% respectively.