发明名称 Tree trunk barrier for pest control
摘要 An apparatus and method for controlling tree pests are disclosed. The apparatus includes a band of compressible material and a barrier ring. The barrier ring is wrapped around the band of compressible material, which, in turn, is wrapped around the trunk of a tree. The barrier ring contains a recess that is filled with a substance that prevents the progression of pests onto upper levels of the tree. The method involves installing the apparatus of the invention onto the trunk of a tree.
申请公布号 US6230435(B1) 申请公布日期 2001.05.15
申请号 US19980178626 申请日期 1998.10.26
申请人 PHILIPP AND DORIS WASHBURN, TRUSTEES OF THE WASHBURN FAMILY TRUST 发明人 CARMAN GLENN E.
分类号 A01G13/10;(IPC1-7):A01M1/18 主分类号 A01G13/10
代理机构 代理人
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