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Arboriculture Glossary of Terms
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| Term | Definition |
|---|---|
| figure-8 knot |
particular knot tied as a safety knot or stopper knot at the end of a line.
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| first aid |
emergency care or treatment of the injuries or illnesses of a person to stabilize his or her condition before medical help is available.
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| fishing-pole technique |
rigging technique in which the load line is run through several rigging points below the load.
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| fixed loop |
webbing or rope sling consisting of a complete, closed loop.
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| fixed-eye sling |
short sling with an eye spliced in one end. Also called dead-eye sling.
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| fixed-length balancer |
sling used in balancing limbs for removal that is not adjustable in length. See balancer.
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| flagging |
(1) symptom in which leaves on a branch wilt and may ultimately turn brown without falling from the shoot. (2) growth form of trees growing in strong winds, characterized by the branches growing toward the downwind side. (3) colored tape used to mark trees or surveying points.
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| flail-type cutters |
in utility arboriculture, mowing machines designed to cut vegetation with a moving blade, chain, or other cutting device.
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| flip line |
tree climbing lanyard, with or without a wire core, usually with a snap or carabiner at one end and an eye at the other end. Used for ascending trees when using spikes, for work positioning, and as a second means of life support when using a chain saw in a tree.
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| floating anchor |
anchor point in a rigging system that can be moved anywhere between two points.
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| floating false crotch |
false crotch installed on an ascent line anchored high in a tree.
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| flush cut |
pruning cut through and/or removing the branch collar, causing unnecessary injury to the trunk or parent stem.
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| foliage |
leaves of a plant.
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| foliar analysis |
laboratory analysis of the mineral content of foliage.
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| foliar application |
applying a fertilizer, pesticide, or other substance directly to the foliage.
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| footlock (footlocking) |
method of ascending a rope by wrapping the rope around the feet. See secured footlock.
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| force |
any action or influence causing an object to accelerate/decelerate. Calculated as mass multiplied by acceleration. Is a vector quantity.
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| forestry |
management of forests, using silvicultural treatments, to provide a variety of forest benefits including timber, aesthetics, wildlife habitat, and/or recreational opportunities.
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| frass |
fecal material and/or wood shavings produced by insects.
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| French Prusik |
type of friction hitch used in climbing and rigging.
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