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小金林区云杉枯梢的主要病因是霜害及红疣枯枝病 Tubercularia vulgalisTode,其次是长翅大蚜Cinara longipennis Mats.、杉针黄叶(虫甲)Xanthonia collaris Chen.、云杉梢绣病Thekopsora sp.、云杉梢枯病Cytospora friesii Sacc.。应根据立地条件选择造林树种。剪除受害枝梢和适时喷药试验效果良好。
The main causes of spruce shoots in Xiaojinlin area were Tubercularia vulgalisTode and Cinara longipennis Mats, followed by Xanthonia collaris Chen. Thekopsora sp., Cytospora friesii Sacc .. Afforestation tree species should be selected according to site conditions. Cut off the victim shoots and timely spraying test results are good.