湿地松粉蚧发生等级预测研究

Studies on the emergence grade forecast of Oracella acuta

根据广东鹤山市湿地松粉蚧(OracellaacutaLobdell)历年调查资料,应用列联表中的多因子分析法建立了鹤山市湿地松粉蚧发生等级预报模型,预报结果的历史符合率为100%.利用GIS的图形分析功能,形象地再现了鹤山市湿地松粉蚧历年的发生情况.

Based on the investigation of the emergence grades in towns of Heshan city, Guangdong Province in the past few years, the emergence grade forecast model of Oracella acuta Lobdell was built by using method of the muti-factors correlative matris analysis. The forecast results of the model indicated that historical coincidences were 100%, and the results were also shown in maps by using the technology of GIS.