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对应用杨树冰核细菌溃疡病综合防治技术的防治示范林样地进行调查。结果表明：经过防治后．幼林和成林村积与对照林相比有明显增长．幼林林水平均增长率７３．２１％，平均增长材积２７．３８ｍ３／ｈｍ２；红旗林场和三牧林场成林林木分别平均增长７６．０４％和８０．ｌ６％．材积分别平均增长１７８．９５ｍ３／ｈｍ２和２１３． ３０ ｍ３／ｈｍ２。至２０００年．此项成果在黑龙江省推广应用防治面积２．ｌ万ｈｎ２．按村积增长计算、获直接经济效益 ５ ３００万元。
The application of poplar ice nucleate ulcer comprehensive prevention and control technology demonstration plots to investigate. The results show that: after the prevention and treatment. Compared with the control forest, the young forest and the forest village have a significant increase. Young forest average growth rate of 73.21%, average growth volume of 27.38m3 / hm2; Hongqi Forest Farm and Sanmu forest growth of forest respectively an average increase of 76.04% and 80. l6%. The volume increased by an average of 178.95m3 / hm2 and 213 respectively. 30 m3 / hm2. Until 2000. The results of the promotion and application of prevention and treatment in Heilongjiang Province 2. l million hn2. Calculated on the basis of village plot growth, the direct economic benefit was 53 million yuan.