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- termite queenThe primary role of the queen is reproduction. Once mated with the king, the queen begins her life-long role as egg producer. The queen can live for ten or more years and can produce over 1,000 eggs per day. Her stomach expands as her egg-laying capacity increases. She normally lives within a(...)
- termite workerThe termite worker caste is by far the largest group within the colony. These creamy white, soft-bodied insects are the ones that damage wood and other cellulose containing materials as this is their primary food. Workers are blind and wingless. They are responsible for nearly all the work(...)
- terracingmethod used to lower the soil grade in steps or stages .
- TFMtrunk formula method
- TGRtree growth regulator
- The Guidelines for Tree Risk Assessment and Management (TRAM) Arrangement serve to provide technical and performance guidance on tree risk assessment, management, monitoring and maintenance. The key objectives are to: (a) Maximise public safety (b) Establish sustainable tree care practices The(...)
- thimble1) an oblong. galvanized or stainless-steel fitting with flared margins and an open-ended base. 2) a device used to increase the bend radius of and reduce wear on a rope when attached to hardware.
- thinningin pruning. the selective removal of live branches to provide light or air penetration through the tree or to lighten the weight of the remaining branches.
- thornsharp. hard. and woody part of certain plants that is generally a modified leaf.
- threaded roda machine-threaded steel rod used for through-brace installations.
- three-point contactclimbing technique in which the climber maintains three points of contact with the tree.
- threshold1) in Integrated Pest Management. pest population level requiring action. 2) in risk assessment and management. level of risk requiring action.
- thresholds(1) in Integrated Pest Management. pest population levels requiring action. (2) in hazard assessment. risk assessment and risk management. levels or risk requiring action.
- through-hardwarecable anchors or bracing rods that pass completely through an oversized. pre-drilled hole in a trunk or branch and are secured with nuts and washers (contrast with dead-end hardware).
- through-pruningin utility line-clearance pruning. directional pruning that removes branches from the center of the tree crown to provide clearance from utility lines. leaving selected overhanging branches above.
- throwbagweighted sack used to set climbing or rigging lines in trees. Usually a shot-filled. teardrop shaped bag.
- throwing ballweighted ball used to set climbing or rigging lines in trees. Usually a rubber-coated. weighted sack or pear-shaped ball. ...
- throwing knotknot tied in a rope to form a weight for throwing to set climbing or rigging lines in trees.
- throwlinethin. lightweight cord attached to a throwbag or throwing ball used to set climbing or rigging lines in trees.
- tie into set a climbing line in a tree and secure it with an appropriate hitch or device.
- tie-in pointposition in a tree (in a natural or false crotch) through which the climbing line is set to serve as the pivot point for work positioning.
- timber hitchknot consisting of a series of wraps on a line and used to secure the line to a limb or tree.
- tip tyingtying a line on the tip (brush) end of a branch to be removed. allowing the branch to be lowered butt-end first.
- tippingsimilar to topping except heading cuts are made through smaller (pencil-sized) branches in the outer periphery of the crown.
- tissuegroup of cells with similar structure that have a special function.
- tomogramimage. produced by processing signals (including-but not limited to-sound waves. x-rays. and magnetic fields). and transmitted through an object. that depicts the relative density of that object.
- tooth lockin carabiners. a type of gate latch mechanism. Also called notch gate or pin lock. Has the disadvantage that it may catch on a rope (contrast with key lock).
- top-cutthe second of three pruning cuts used to execute a removal cut. Made from the top of the branch downward. directly above the undercut when using a chain saw. or slightly farther out when using a hand saw.
- top-handled chain sawchain saw with the center of gravity just above the engine. where the right (trigger) handle is located.
- topiaryspecialty pruning technique in which a f perennial (and usually evergreen) shrub or tree is trained into a distinct shape. by means of regular pruning and/or hedging.
- toppinginappropriate pruning technique to reduce tree size. Cutting back a tree to a predetermined crown limit. often at internodes.
- topping cuthinge cut used when removing the top from a tree in the tree removal process.
- topsoilsurface layer of soil that may be rich in nutrients from decaying plants and bacterial material. often removed when sites are graded in preparation for construction or development.
- tortswrongful acts. other than breach of contract. for which civil action may be taken.
- TPOtree preservation order; tree preservation ordinance
- TPPtree protection plan
- TPZtree protection zone
- TPZBtree protection zone barrier
- TRAtree risk assessment
- TRAMThe Guidelines for Tree Risk Assessment and Management (TRAM) Arrangement serve to provide technical and performance guidance on tree risk assessment, management, monitoring and maintenance. The key objectives are to: (a) Maximise public safety (b) Establish sustainable tree care practices The(...)
- transfer linesee load-transfer line.
- transformeran electrical device for changing the voltage of alternating current.
- translocationmovement of sugars in the phloem.
- transmission linesin an electric utility system. wires used to transmit electricity from generating stations to the distribution network or between distribution substations. often carrying in excess of 69.000 volts (contrast with distribution lines).
- transpirationwater vapor loss through the stomata of leaves.
- transplant shockplant stress following transplant; characterized by reduced growth. wilting. dropping foliage. or death.
- transplantingprocess of moving a plant to a new location.
- TRAQISA Tree Risk Assessment Qualification
- tree boardgroup of citizens. both laypeople and professionals. that are appointed to support and sometimes oversee urban forestry programs; may also include elected officials.
- tree failureuprooting or mechanical breakage of a tree. its parts. and/or surrounding soil.