基于信息扩散理论的松干蚧危害评价

基于本溪市1999~2013年松干蚧(Matsucoccus sinensis)虫口密度监测资料,运用信息扩散理论的风险评估模型对松干蚧危害程度进行风险分析。结果表明,越冬代发生5级危害为1.8~2.2年1次,7级危害为5.2~7.2年1次,9级以上危害为26.7年1次;越夏代发生6级危害为2.4~2.9年1次,8级危害为9.3~17.3年1次,9级以上为21.2年1次。

Evaluation of Matsucoccus sinensi Hazarb Baseb on Information Diffusion Theory

Based on pine scale insect density monitoring data in Benxi city from 1999 to 2013, the risk analysis of Matsu-coccus sinensis hazard was used information diffusion model. The results showed that 5 damage was 1.8~2.2 years once, and 7 level of harm was 5.2~7.2 years once, and above 9 damage was 26.7 years once in overwintering generation; It occurred the 6 level hazard 2.4~2.9 years once, and 8 level of harm was 9.3~17.3 years once; Level 9 or above harm was 21.2 years once in over summer generation.