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  2. Pruning - Wikipedia

    en.wikipedia.org/wiki/Pruning

    Topping: Topping is a very severe form of pruning which involves removing all branches and growths down to a few large branches or to the trunk of the tree. When performed correctly it is used on very young trees, and can be used to begin training younger trees for pollarding or for trellising to form an espalier .

  3. Pruning shears - Wikipedia

    en.wikipedia.org/wiki/Pruning_shears

    The ratchet pruner, which can handle stems thicker than two centimetres, fits in this category. Because they make a clean cut without crushing, bypass pruners are preferable for pruning live wood. [4] Parrot-beak pruners consist of two concave passing blades, which trap the stem between them to make the cut. These are suitable only for narrower ...

  4. Branch attachment - Wikipedia

    en.wikipedia.org/wiki/Branch_attachment

    A common malformation of a branch attachment in a tree is the inclusion of bark within the join, commonly referred to as a 'bark inclusion' or 'included bark'. This malformation is known to weaken the connection of the branch to the rest of the tree's structure, as it acts to block the formation of the axillary wood at the branch attachment's apex.

  5. Fruit tree pruning - Wikipedia

    en.wikipedia.org/wiki/Fruit_tree_pruning

    An apple tree sprout is being converted to a branched, fruit-bearing spur by an arborist. Numbers show the sequence of cuts, which occurred during two years. Plants form new tissue in an area called the meristem, located near the tips of roots and shoots, where active cell division takes place.

  6. Aerial saw - Wikipedia

    en.wikipedia.org/wiki/Aerial_saw

    A ten-blade saw demonstrated by FirstEnergy in 2017. An aerial saw is a saw which is flown through the air. The aerial saw may also be known as a helicopter aerial saw.. Large aerial saws are flown by helicopter to trim trees in remote locations when they overgrow power lines, pipelines or other infrastructure.

  7. Tree fork - Wikipedia

    en.wikipedia.org/wiki/Tree_fork

    A tree fork is a bifurcation in the trunk of a tree giving rise to two roughly equal diameter branches. These forks are a common feature of tree crowns. The wood grain orientation at the top of a tree fork is such that the wood's grain pattern most often interlocks to provide sufficient mechanical support.

  8. Girdling - Wikipedia

    en.wikipedia.org/wiki/Girdling

    Girdling prevents the tree from sending nutrients from its foliage to its roots, resulting in the death of the tree over time, and it can also prevent flow of nutrients in the other direction depending on how much of the xylem is removed. A branch completely girdled will fail; and, when the main trunk of a tree is girdled, the entire tree will ...

  9. Treehouse attachment bolt - Wikipedia

    en.wikipedia.org/wiki/Treehouse_Attachment_Bolt

    One of the main features of TABs is their strength, requiring fewer tree penetrations for robust fastening of a treehouse and hence less damage to a live tree. A typical TAB consists of a threaded metal bolt and a larger diameter collar. The latter provides an extra bending strength by bearing upon the compression strength of the tree grain. [1]

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