The Control of Cryptorrhynchus lapathi L. By Using Loop Bundle and Hole Injection Methods
用环扎法和注孔法防治杨干象
Chemical control test of Cryptorrhynchus lapathi L.
杨干象的药剂防治试验。
A STUDY ON SPATIAL DISTRIBUTION PATTERN OF POLYGONUM LAPATHIFOLIUM L.IN VEGETABLE PLOT
菜地酸模叶蓼的空间分布型研究
Analysis on fatalness of harmful insect of Cryptorrhynchus lapathi in forestry
林业有害生物杨干象危险性分析
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