Tree-trimming companies should require their employees to check the base of trees before they climb it to prevent accidents, said Siaosi Tongotea, a foreman with HTM Contractors in Honolulu. He said his tree trimmers use a 3-foot-long metal tool to determine the condition of the tree by sticking the instrument into its base. "[I]f it goes more than a foot then you know there's a problem with it," Tongotea said.

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KITV-TV (Honolulu)

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