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Trunk injection or endotherapy also known as vegetative endotherapy, [1] [2] [3] is a method of target-precise application of pesticides, [4] [5] [6] plant resistance activators, [7] or fertilizers [8] into the xylem vascular tissue of a tree with the purpose of protecting the tree from pests, or to inject nutrients to correct for nutrient deficiencies.
In many, but not all champion tree lists, and for data collected for scientific purposes, there is a need to distinguish between a single trunk tree and a multi-trunk tree. Two smaller trunks that grow together will achieve a large combined girth much faster than will a single trunk tree growing in the same conditions, so if the data will be ...
Events such as storms or incorrect pruning activity can cause damage to the branch collar [11] When the trunk collar is injured, the trunk xylem below it is rapidly infected and decays. [1] Within the branch collar there is a narrow cone of cells known as the branch defence zone, these cells activate the development of wood wound which is a ...
Tree shape profiles can be calculated individually for each tree encountered. However, examining the profiles of a large number of trees of different species found that typical profiles varied in a regular pattern, and for each profile family there was a Crown Form value that could be used to calculate the volume of the crown.
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According to the U.S. Department of Commerce, 85% of artificial trees are made in China in factories that churn out around 1,500 trees in just two days, accruing labor costs of a measly $600 a ...
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Depending on climate, soil moisture, nutrient dynamic, and location much planning goes into planting street trees. If done incorrectly these trees can cost a municipality time and money to maintain and remove. [72] Urban site conditions, Species selection, and tree management are three key aspects of cultivating street trees.