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1998年9月至2000年11月,以林场、经营所、苗圃、林业站为普查实施单位,对全省48个县(市、区)、833个乡(镇)、18个森工局和4个森林经营局内的人工林、天然林、天然次生林、苗圃和园林绿化树种进行了全面调查。共设调查标准地15 390块,总调查代表面积5.6×106hm2,占应调查林地面积的92.3％。现已查明国家规定的森林植物检疫对象8种,分别是落叶松枯梢病(Guignardia laricina)、松针红斑病(Dothistroma pini)、松疱锈病(Cronartium ribicola)、冠瘿病(Agrobacterium tumefaciens)、杨干象(Cryptorrhynchus lapathi)、落叶松种子小蜂(Eurytoma lar-icis)、柳蝙蛾(Phassus excrescens)、日本松干蚧(Matsucoccus matsumurae),我省补充规定的森林植物检疫对象3种,分别是青杨虎天牛(Xylotrechus rusticus)、白杨透翅蛾(Paranthrene tabaniformis)、紫穗槐豆象(Aconthoscelides plagiatus),并查明了上述森林植物检疫对象在我省的分布、发生和危害面积。
From September 1998 to November 2000, a total of 48 counties (cities, districts), 833 townships (towns), 18 forestry bureaus Four Forest Management Bureau plantations, natural forests, natural secondary forests, nurseries and landscaping tree species conducted a comprehensive survey. A total of 15 390 survey sites were set up, with a total survey area of 5.6 × 106hm2, accounting for 92.3% of the surveyed forest area. Eight kinds of forest plant quarantine objects stipulated by the state have been identified, including Guignardia laricina, Dothistroma pini, Cronartium ribicola, Agrobacterium tumefaciens, Cryptorrhynchus lapathi, Eurytoma lar-icis, Phassus excrescens, Matsucoccus matsumurae, and three kinds of forest plant quarantine objects supplemented by our province, namely, Xylotrechus rusticus, Paranthrene tabaniformis and Aconthoscelides plagiatus, and the distribution, occurrence and area of the above quarantine objects of forest plants in the province were identified.