但闽北引种火炬松的存在较为严重的松梢螟危害，其中以低海拔地区的松梢螟危害更为严重。
But the relatively serious borer damage to pine shoot existed in north Fujian, the borer damage to pine shoot with low altitude was more serious.
应用频次分析法和聚集度指标法对微红梢斑螟在马尾松和火炬松林中的空间分布进行研究。
This paper deals with the spatial distribution patterns of the larvae of Diorycitria rubella in masson pine and loblolly pine using the frequency distribution analysis and aggregation indices.
应用频次分析法和聚集度指标法对微红梢斑螟在马尾松和火炬松林中的空间分布进行研究。
This paper deals with the spatial distribution patterns of the larvae of Diorycitria rubella in masson pine and loblolly pine using the frequency distribution analysis and aggregation indices.
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