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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.
Two different types of tree spades on different types of loader vehicles Steps in using a tree spade. A tree spade is a specialized machine that mechanizes the transplanting of large plants whose hand-powered transplanting (using traditional spades, wagons, and other equipment) would be prohibitively laborious.
Ordnance crest "WHAT'S IN A NAME" - military education about SNL. This is a historic (index) list of United States Army weapons and materiel, by their Standard Nomenclature List (SNL) group and individual designations — an alpha-numeric nomenclature system used in the United States Army Ordnance Corps Supply Catalogues used from about 1930 to about 1958.
Pressure grouting or jet grouting [1] involves injecting a grout material into otherwise inaccessible but interconnected pore or void space of which neither the configuration or volume are known, and is often referred to simply as grouting.
With the advent of new drive technologies, Rudolf L'Orange developed and invented new injection systems, such as the "zweimengendüse" for continuous atomization. Due to the positive response to his products, he was able to open three further operations: in Dresden , in Niederschöneweide near Berlin , and in Dębno in Pomerania .
Tree harvester (Click for video) 6-wheeled Valmet harvester Small 4-wheeled Rottne harvester Timberjack harvester John Deere harvester in SwedenA harvester is a type of heavy forestry vehicle employed in cut-to-length logging operations for felling, delimbing and bucking trees.
Scans from Dr. Meng's collection began appearing in volume 4 of the 2002 catalog. Together with generous access by many other collectors, Meng's cooperation has resulted in creation of scanned images of all but about 1300 stamps by Scott as of 2024 catalogue series. About 120 are specialized stamps from the US Specialized Catalogue.
When the tree is lying on the ground, branches may be storing enormous potential energy through mechanical strain. When a branch is cut, often with a chain saw, this energy can be released suddenly and the branch can jump dangerously. In addition, a branch may be supporting the tree, and the tree can fall or roll when the branch is cut.