摘要
用不同的流行学模型拟合2002年和2003年莱阳地区梨黑星病(Venturianashicola)的系统监测数据,结果表明:Logistic模型能较好地描述梨黑星病病叶率随时间的变化动态;Gompertz模型能较好地描述平均病斑数随时间的变化动态。根据Logistic模型,梨黑星病的最佳防治时期是在梨树初花期后的60d内。
Several models were used to fit the temporal data of pear scab monitored in Lai-Yang in 2002 and 2003. Results showd that Logistic model and Gomperts model could reflect respectively the change of the diseased leave percentage and average number of lesions per leaf with time. The optimum prevent time was within 60 days after coming into blossom.
出处
《沈阳农业大学学报》
CAS
CSCD
北大核心
2005年第5期558-561,共4页
Journal of Shenyang Agricultural University
基金
欧共体资助项目(SMADIA:ICA4-CT-2001-10001)
