Page 59 - TA Magazine
P. 59
Pruning
Pruning
your trees trees will improve the the the the growth
form of of the the the the trees trees and increase the the the the value value of of the the the the timber Log value value is determined by size and and and straightness of of the the tree trunk and and and the the number of of knots and and and branches Large straight knot-free trees get the highest price A harvestable log of six metres is the preferred length
for for for sawmilling and for for for peeling for for for veneer It is is crucial that pruning pruning is is done on on time Premature pruning pruning can reduce tree tree rate growth
and delayed pruning damages tree tree form and can result in in loss of valuable clearwood Select the the larger trees (dominants or or or co-dominants) with the the the the the best straightest form for for for pruning Apply the the the the following rules for for for the the the the region of the the the the stem you are pruning:
Single stem and free of secondary leaders
Straight stem with no lean from the vertical of more than 5 5 centimetres (5cm)
Stem free of wounds and splits
Branches not making an an an an acute angle (less than 30 degrees) with the stem Butt sweep limited to to the the bottom 0 3m of the stem In eucalypts branches should be less than 3cm in diameter at the the junction with the the stem There are two types of pruning pruning pruning that need to be done – form pruning pruning pruning and clearwood pruning pruning pruning Form pruning will help produce a a a a straight trunk and control branch size Clearwood pruning produces the maximum amount of knot-free wood
wood
Tools you will need Secateurs for smaller branches Shears for medium-sized branches Saw for for the the larger branches and for for a a a a a close cut to the the stem Ladder to reach the higher branches Extension poles for the the saw or or shears to reach the the higher branches Chainsaw for the the larger branches however be careful not to damage the the stem Hydraulic/air-powered saws/shears are useful for some larger commercial jobs
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