Isa arborist stuvia Study guides, Class notes & Summaries

Name five ways that trees can be adversely affected by construction. - ANSWER-root injury soil compaction injury to trunk or branches grade change excavation/severing root system When soil is compacted, the _______ _______ between soil particles is reduced. - ANSWER-pore space The phases of land development are... - ANSWER-site clearing and demolition rough grading utility installation and grading construction final grading and landscape installation If the soil grade on a const...

Because pruning removes leaves and reduces the overall photosynthetic capacity of a tree, it also reduces _______. - ANSWER-growth Name five common reasons for removing limbs from trees. - ANSWER-dead diseased hazardous crossing thinning for light or air penetration weight reduction size reduction obstructing signs, views, clearance, etc. To maximize flowering, plants that bloom on current season's wood should be pruned prior to ______ ______, or in the summer after bloom has occur...

List four defects that might be found during rope inspection that would require a rope to be retired. - ANSWER-cuts, excessive fraying puffs, pulled or herniated fibers abrasions changes in diameter discoloration glazing of the fibers Before climbing a tree, a climber should inspect the tree for hazards such as... (list 5) - ANSWER-broken limbs electrical hazards dead limbs decay splits True/False - The load on any piece of climbing or rigging equipment can be many times higher th...

water - ANSWER-Trees take up essential elements, dissolved in ______, through the roots. macronutrients - ANSWER-_______ are elements required by trees in relatively large quantities. nitrogen - ANSWER-The macronutrient ______ is a constituent of chlorophyll and, if deficient, can cause reduced growth and yellowing of the foliage. chlorosis - ANSWER-yellowing between the leaf veins is called _______ and may be the result of mineral deficiencies. slow-release fertilizers - ANSWER-It i...

True/False - Information about a tree's history and symptoms gained from a home owner can always be considered accurate. - ANSWER-False If a tree is not well suited for the site in which it has been planted, it may become _______, predisposing it to other problems. - ANSWER-stressed A common mistake in diagnosis is to carefully examine the aboveground portion of the tree, while ignoring the _______. - ANSWER-roots True/False - If a tree declines or dies within the first year following ...

o, a - ANSWER-The majority of fine, absrobing roots of a tree are in the __ and __ horizons. compact, pore space - ANSWER-Driving vehicles across wet soil will _____ the soil and destroy soil _____ _____. Buffering Capacity - ANSWER-_____ ______ is the soil property that resists changes to the pH. True - ANSWER-True/False - Negatively charged clay particles hold cations near their surface. soil structure - ANSWER-______ _______ ISA - Arborist Certification Test - Chapter 3 Questions ...

stressed - ANSWER-If a tree is not well suited for the site in chich it has been planted, it may become _______, predisposing it to other problems. roots - ANSWER-A common mistake in diagnosis is to carefully examine the above ground portion of the tree, while ignoring the ______. abiotic - ANSWER-Leaf scorch, girdling roots, and mineral deficiencies are examples of ______ disorders egg laying - ANSWER-Insect damage to trees is usually the result of feeding or _____ ______. ISA - Arbor...

List the three components of risk assessment. - ANSWER-potential for failure environment that may contribute to failure potential target By definition, if there is no _______, a tree cannot pose a risk. - ANSWER-target When performing a tree assessment, it is important to develop and stick to a _______ process. - ANSWER-systematic For structural strength, branches should be _______ in diameter than their parent limbs or trunk. - ANSWER-smaller _______ _______ fungi primarily decay ...

Name 3 instances in which cabling might be called for in a tree. - ANSWER-a) support a weak crotch b) support for multi stemmed trees c) support for weak wooded trees Common-grade cable is relatively malleable (bendable) and easy to work with. ________ - _________ - ________ cable is much stronger but less flexible than common-grade cables. - ANSWER-extra-high-strength One advantage of _______ _______ is that it is both strong and flexible. A potential drawback is the limitation of c...

True/False - Information about a tree's history and symptoms gained from a home owner can always be considered accurate. - ANSWER-False If a tree is not well suited for the site in which it has been planted, it may become _______, predisposing it to other problems. - ANSWER-stressed A common mistake in diagnosis is to carefully examine the aboveground portion of the tree, while ignoring the _______. - ANSWER-roots True/False - If a tree declines or dies within the first year following ...