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The Morris High-Prunning Equipment

The major components of the Morris highpruning equipment are a 21-pound, 15-footlong ladder, a 3-pound platform, and a 4-pound elevator (fig. 1). The ladder has ample strength under a vertical load, but it is not designed to permit bending stress to the side. The platform is used when branches not accessible from the ladder must be pruned. It is self-locking on the trunk and does not damage young light-barked species. The elevator has two purposes. It supports the operator when he is raising or lowering the ladder, and it supports the ladder when it is in a raised position. It is fixed to the tree in the same manner as the platform; however, it must not be used as a pruning platform.


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Publication: Tree Planters' Notes - Issue 70 (1965)