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The optimum position for rodding is about twice the smaller member's diameter above the weak crotch. In case of dire weakness, put one or even two more rods a like distance farther up. (Always coat with tree paint any metal put into living tree tissues. This goes for drain tubes or pipes, too, which need not be driven more than three or four inches into their holes.) Cabling to support weak crotches, or to brace any of a tree's upper parts by fastening them to other parts, is done with galvanized twist wire in gauges that run from ^4- to %-inch. The cable is fastened to hooks or eyes that may be of the lag (screw-in) or bolt-and-nut type. Loops in the unraveled cable's ends are fashioned by wrapping its separated strands back around itself with pliers. Cables should be installed while trees are in leaf, so that tensions can be properly adjusted, again using the "come-along" to ensure |
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