Louisiana Arborist Practice Exam

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• What is the term for decay found at the base or lower trunk of a tree?
• What characteristic is typical of sandy soils in arid regions?
• Which benefit of mulch helps to insulate tree roots?
• In what scenario must an arborist follow federal regulations related to pesticides?
• What mistake can lead to a barber chair scenario during felling?
• What layer of a tree is primarily involved in growth?
• The opening and closing of what structures in leaves allows for gas exchange and transpiration?
• Which process assists trees in maintaining their structure during strong winds?
• Chlorosis is often associated with which type of nutrient deficiency?
• What kind of buffering capacity do clay soils and soils high in organic matter have?
• How does a tree's energy allocation shift due to nitrogen fertilization?
• What is the term for the "stalk" of a leaf?
• What can trigger a tree's energy allocation toward growth when nitrogen fertilization is applied?
• What is the scientific classification of plants called?
• What is a significant drawback of topping trees?
• What is it called when a pest population rapidly rebounds in the absence of natural enemies?
• What occurs when trees take up CO2 in the atmosphere and "store" it in the form of wood and other carbon-based tissues?
• What are the growth habits called for more rounded trees, which are often broader than they are tall?
• What does chlorosis in a tree refer to?
• What is a health risk to trees caused by prolonged flooding?
• Which of the following characteristics would most likely enhance a tree's attractiveness to birds?
• How can species that exhibit distinct differences from the general species be categorized?
• What does brown rot fungi primarily decay in trees?
• Which two levels are most important to measure in a soil analysis?
• Which process occurs in the leaves due to the presence of chlorophyll?
• Are wound dressings or paint recommended after making pruning cuts?
• Which of the following is NOT typically a method for tree propagation?
• Which of the following is a tree health problem associated with flooding?
• What is one way cavities can start in trees?
• Which conifers have needles in bundles?
• What is the process called by which chemical energy, stored as sugar and water, is released?
• How do damage caused by nonliving factors tend to present?
• True or False: Diseases affecting only the foliage are serious only if defoliation occurs over multiple years.
• How do trees absorb essential elements required for growth?
• What is the proper acknowledgment a climber must hear, in response to "Stand clear," before proceeding?
• Is it generally preferable to minimize irrigation directly to plant foliage?
• If a planting hole in a clay soil site is backfilled with sandy soil, what will happen?
• What type of growth results in the increase of a tree's height?
• What part of the root system is primarily responsible for absorbing water and nutrients?
• What regulates the intake of CO2 and the release of water vapor in plant leaves?
• What term is used to describe a tree that sheds leaves in response to seasonal changes?
• Why might filling cavities in trees be considered counterproductive?
• Which process is directly related to the chlorophyll content in leaves?
• What primarily causes plant diseases?
• What is the term for the diversity of organisms living, moving, and interacting in the soil called?
• Which component of the plant primarily facilitates water transport?
• What pigment is responsible for the green color in leaves, crucial for photosynthesis?
• What are microscopic worms that may feed on trees and carry diseases called?
• Which of the following is NOT a cabling technique?
• Besides primary, what are the meristems at the end of the shoots termed?
• Which of the following are functions of the root system?
• Which of the following is an example of an insect pest with piercing/sucking mouth parts?
• What are cells that cross the phloem and xylem for radial transport called?
• What happens when a tree is wounded according to the CODIT theory?
• Which tree characteristic is associated with fall color?
• What is a landscape designed to collect and hold stormwater runoff called?
• Which of the following are examples of tropism?
• What consequence can result from performing flush cuts?
• Which type of tree growth habit is characterized by a narrow, upright form?
• Microorganisms tend to congregate in the rhizosphere because:
• What is the general term for the process of reducing risk potential in tree management?
• What is the primary benefit of trunk implants in trees?
• What is localized dead tissue, often shrunken and discolored called?
• What is a common consequence of poor tree pruning practices?
• What is the term for trees with upright growth and a strong, central leader?
• What characteristic is associated with wide crotch angles in trees?
• In arboriculture, what does “mitigation” primarily refer to?
• What happens when a tree is leaning in the direction of a fall and splits upward from the back cut?
• What is the definition of a tree?
• Which of the following is an example of an abiotic disorder in trees?
• What information does a fertilizer container label provide regarding nutrient composition?
• What role does the cambium layer play in trees?
• What are trees that maintain their leaves for more than one year called?
• What is the zone of intense biological activity near the actively elongating roots called?
• Which factor should be avoided when pruning a newly planted tree?
• What is the term for insects that carry plant pathogens?
• What are trees that lose their leaves in autumn called?
• Which term refers to the roots that are mostly located in the upper 12 inches of soil?
• What is a common characteristic of insect pests that feed on foliage?
• Which plant characteristic is NOT typically associated with aesthetic desirability in trees?
• Is a contract required between a licensed arborist before performing tree work?
• What does Plant Health Care primarily aim to manage?
• Trees that lean because of ground failure or root injury have a high potential to fail. What is true about this statement?
• What are the main products of photosynthesis?
• What role do roots play in plants?
• What is the term for the rate at which water soaks into the soil?
• What technique is used to ensure a tree falls in a predetermined direction?
• What is a causal agent of disease called?
• What is the term for the yellowing of leaf veins due to mineral deficiencies?
• What are mycorrhizae?
• Which pest is NOT classified as having piercing/sucking mouth parts?
• What does CODIT stand for in the context of tree wound response?
• What effect does a thinning cut have on a tree?
• What is the process called where ions of essential elements wash down through the soil profile and are lost?
• Under what circumstances is lightning protection warranted for a tree?
• Why is it essential to understand soil pH before planting a tree?
• What should be the orientation of the hinge during a tree fall?
• True or False: Excess or insufficient water is a likely cause of tree decline within the first year after installation.
• Which pest is commonly known for damaging tree bark and cambium layers?
• What is identified as a risky situation for a tree concerning narrow crotch angles?
• What tissue conducts carbohydrates within a tree?
• What causes twig dieback from periodical cicadas?
• What feature of a tree can primarily dictate the felling notch depth?
• What role does cellulose play in tree health?
• What is a common measurement for property damage insurance for arborists?
• What is the Standard of Care in arboriculture?
• What type of wood do trees produce to provide stability when they lean?
• What mineral toxicities can result from flooding?
• What predisposes trees to other stress factors in flooded conditions?
• What type of damage can be caused by herbicides?
• Which of the following is an indication that a tree may be dangerous to fell?
• What form of tree growth is described as having branches that droop towards the ground?
• What is the term for soil, following drainage?
• Which of the following best describes a barber chair situation?
• A felling notch should not generally exceed a depth of how much?
• Which types of data are typically collected in a tree inventory?
• Soil can hold water in microspores that restrict tree roots' ability to absorb the water. Is this statement true or false?
• What type of insurance coverage is an arborist required to have for personal injury?
• What is the primary objective of crown cleaning?
• Which specific part of the leaf contains the chlorophyll necessary for photosynthesis?
• Does Spanish Moss pose any harm to trees?
• Which of the following best describes the 'earlywood' growth rings of a tree?
• What does CODIT stand for?
• What climatic factor primarily determines a tree's hardiness across different zones?
• What characteristic of bark can be a useful identifying factor in trees?
• What term describes the process of chemicals being washed down through the soil?
• Which growth habit is characterized by a shape resembling a pyramid?
• What does the term 'phloem' refer to in a tree?
• What does hardiness indicate about a tree?
• What kind of tree remains green throughout the year and does not lose its leaves?
• What is the primary green pigment found in plants?
• What type of trees are characterized by the shedding of their leaves?
• What is the disease Fire Blight caused by?
• What type of organism can serve as a host for plant diseases?
• What is the term for small openings in stems for gas exchange?
• Which of the following is NOT a species recommended for planting under power lines?
• What is an example of a plant adaptation that occurs due to mineral deficiencies?
• What is the difference between arboriculture and urban forestry?
• What role do hormones play in the root system of trees?
• What role does Phloem play within plant physiology?
• Flooding can cause trees to become prone to what risk?
• What are the sites of rapid cell division in the root tips and cambiums called?
• What is the likely effect of removing the terminal bud during pruning?
• What is the primary role of mycorrhizae in relation to tree roots?
• Which of the following can be used to monitor soil wetness or dryness?
• How does pruning a tree during transplanting affect its growth?
• What is the main function of xylem in a tree?
• What are the spaces between soil particles called?
• What is the role of the hinge when felling a tree?
• If 'burn' or leaching are potential issues, which type of fertilizer should be used?
• In terms of plant structure, what is a bud primarily responsible for?
• True or False: Many tree roots exist in a symbiotic relationship with fungi that assist the tree in water and mineral absorption.
• One of the benefits of mulch is to control which of the following?
• Which of the following is an example of a natural, organic fertilizer?
• Which site characteristic refers to the amount of area available for tree roots to grow?
• What does ANSI 2-133.1 refer to?
• What type of plants are classified as angiosperms?
• What is the term used for the swelling of tree roots due to infection?
• What is commonly the most limiting factor for tree fertilization effectiveness?
• What protects the branch and trunk of a tree from mechanical injury and desiccation?
• What is critical in controlling the direction of a tree falling?
• What is the safety concern with making a deep felling notch?
• At what times is it most beneficial to irrigate plants?
• What are the functions of cambium in trees?
• Are vascular diseases usually fatal to trees?
• Most fungi cause plant disease. True or False?
• What should be avoided to ensure healthy root growth in poorly drained sites?
• What effect does flooding have on soil organisms?
• Where should a pruning cut be made on a branch?
• Which fertilizer would be recommended for a garden requiring a rapid nutrient response?
• Pollution damage is often difficult to diagnose because the symptoms may mimic which problems?
• What is the function of mature green leaves in trees?
• Why are most of the fine, absorbing roots typically found near the soil surface?
• What is one aesthetic benefit of mulching?
• Which of the following is a type of tree insect pest with chewing mouth parts?
• True or False: Mites are classified as insects.
• What is the effect of insufficient water on fertilizer uptake?
• What are materials applied to plants to minimize water loss through transpiration called?
• What term describes the movement of water through soil particles?
• What are commonly referred to as the "food factories" of trees?
• Which characteristic may NOT be essential for assessing a tree's overall health?
• Which practice helps improve soil aeration around trees?
• What is one of the main functions of a tree's trunk/stems?
• Which component of trees is primarily responsible for transporting water?
• Which term refers to the waxy covering of a leaf?
• An 80-lb bag of 10-6-4 fertilizer contains how many pounds of actual nitrogen?
• Which macronutrient is crucial for chlorophyll production and its deficiency leads to yellowing of leaves?
• What is the process by which water enters young roots or mycorrhizal roots?
• Which factor most contributes to root growth in favorable conditions?
• What is the primary purpose of dead wooding a tree?
• Is short, shallow, and frequent irrigation considered better than long, deep, infrequent irrigation?
• What are some problems associated with topping or heading back a tree?
• Which of the following is NOT a symptom of excess fertilizer in the root zone?
• Which practice helps in preventing future growth problems in tree crowns?
• How can chlorosis in a tree be treated?
• If you want to fertilize a tree with 4 lbs of actual nitrogen using 16-4-8 fertilizer, how many pounds of fertilizer are needed annually?
• What is formed as the branch and trunk tissues expand against each other in the branch union?
• What are the positively charged particles formed from essential elements dissolved in soil water called?
• What is the main consequence of trees experiencing stress over time?
• What are the primary functions of plant resources produced through photosynthesis?
• Which of the following is a major part of a tree responsible for photosynthesis?
• What are dead spots on foliage called?
• Which genus of tree does NOT have an opposite leaf arrangement?
• What aspect of tree health is primarily compromised by scale insects?
• What important factors should be considered before planting or recommending a tree?
• What does current research suggest about filling cavities in trees?
• What do roots and fungi form, aiding in the uptake of water and minerals?
• Which species of tree should not be planted under utility wires?
• What is a general sign of nitrogen deficiency in trees?
• Which tree structure is primarily involved in nutrient storage?
• What function does Xylem serve in a plant?
• Which tree structure is primarily responsible for mechanical support?
• Which factor is essential for diagnosing plant health issues?
• What is the recommended fertilization rate for trees?
• What is water that drains from the macrospores called?
• What factor is critical for the effective uptake of fertilizer elements?
• What is reduced growth in plants commonly referred to as?
• What is the orientation of growth in response to an external stimulus called?
• Why are surface-applied fertilizers often preferred in certain situations?
• In areas prone to poor drainage, which method is least effective in ensuring plant survival?
• Which of the following practices helps maintain soil health?
• What vascular tissue transports water and dissolved essential minerals within a tree?
• What can be used as a technique to reduce soil compaction around trees on a construction site?
• What are the two parts of a scientific name in taxonomy?
• Damage from caterpillars primarily results in what visible symptom on leaves?
• What piece of safety equipment is essential when operating a chainsaw?
• What might wilting and marginal burning in plants indicate about fertilizer application?
• What is the arrangement called when two leaves and/or buds are located at the same node on a twig?
• Which layer of a tree is responsible for outward growth and increased trunk girth?
• What category do trees' essential nutrients fall under when required in large quantities?
• What condition is described as a general yellowing of leaves due to insufficient chlorophyll?
• Are wound dressings beneficial for trees?
• Can drought problems become more severe following moderate to high soil moisture conditions?
• Which components in tree cells are indigestible to many insects and pathogens?
• Which of the following is a consequence of improper pruning techniques?
• What is the purpose of crown restoration?
• What is a major drawback of deep root fertilization?
• What is a key difference between flush cuts and proper cuts made to a branch collar?
• What key factor can inhibit a tree's response to fertilizers?
• What is the chemical inhibition of growth and development of one plant to another called?
• What does phloem primarily transport within the tree?
• What structure is formed when trunk tissue grows around branch tissue?
• Which of the following is NOT a type of tree insect pest with chewing mouth parts?
• According to tree safety standards, when can a tree not pose a risk?
• Fertilization recommendations should be based upon what criteria?
• Which type of decay primarily affects the lignin within and between the cell walls in the wood, reducing the tree's compressive strength?
• What are commonly encountered organisms that predictably cause injury to plants called?
• What is a common outcome of poor pruning practices?
• Is it true that rapidly growing trees can be less resistant to certain insects and diseases?
• What do trees produce that can have toxic and deterrent effects on certain insects?
• In the scientific name Acer saccharum, what does "Acer" identify?
• If the concentration of salts around root cells is greater than in the cells themselves, what process draws water out of the roots?
• Negatively charged clay particles hold cations near the surface. Is this statement true or false?
• What advantage do slow-release fertilizers provide for plant health?
• How much nitrogen is contained in a 50-lb bag of 20-10-5 fertilizer?
• What is the process called that involves the loss of water vapor from leaves?
• What is the primary effect of allelochemicals produced by trees?
• What is the process that combines carbon dioxide and water in a reaction driven by light to produce sugars?
• What is the primary cause of scale damage to plants?
• Over time, mulching can improve soil structure, reduce compaction, and add organic matter to the soil. Is this statement true or false?
• Why are sulfur-coated urea or urea formaldehyde included in nitrogen fertilizers?
• Why is the use of spurs prohibited on living trees?
• What essential nutrient is often tested in soil to determine if fertilization is necessary?
• True or False: Most soil organisms cause disease or decay in tree roots.
• Why might a soil test not identify a nutrient deficiency in a plant?
• Name 3 types of notches used in tree felling.
• True or False: The pathogens that cause plant diseases are primarily fungi.
• What is the process of decomposition of organic matter by microorganisms?
• What is the ideal time of year for tree planting?
• What is a cultivated variety of a plant called?
• A condition characterized by a cluster of dwarf shoots on affected twigs is called?
• Copper, chlorine, and boron are classified as what?
• What is a branch collar?
• Which type of mouth part is associated with aphids?
• True or False: A tree listed as adaptable to wet soil conditions will always thrive if planted in those conditions.
• Which of the following is NOT a method for applying fertilization to trees?
• What happens when soil is compacted?
• What is the minimum diameter for a climbing rope used in tree care?
• What symptom might indicate plant damage associated with sap-feeding insects?
• In tree wound management, what is the purpose of creating "walls" around a wound?
• What does CODIT stand for in relation to tree health?
• Which adaptation might a tree exhibit when acclimating to shade conditions?
• What is the most serious damage to a tree caused by construction activities?
• What is the term that describes a tree's adjustment to changes in its environment over time?
• Foliar application fertilizers are particularly used to correct what type of deficiencies?
• What term describes a system that uses more energy than it produces?
• What is the soil property called that resists changes to pH?
• What are two significant limitations of using trunk implants and microinjections?
• What is one benefit of using mulch in landscaping?
• Which organic fertilizer is known for providing a quick nutrient release?
• What is the measure of the rate of water used by plants and evaporation known as?
• When is it acceptable to use spurs to climb trees?
• What additional function can a climbing rope serve besides securing a climber?
• Which of the following is NOT among the typical tree insect pests with chewing mouth parts?
• What does soil pH measure, and why is it important for trees?
• Surface application of fertilizer is relatively inexpensive and primarily affects which part of the soil?
• What can growth rings in trees indicate?
• What is the primary component of plant cell walls?
• What is a benefit of mulching a young tree?
• What commonly leads to insect damage in trees?
• How many buds will a compound leaflet with multiple leaflets have?
• Which of the following is NOT a characteristic used to identify trees?
• How is the height of the tree trunk typically considered for making the felling notch?
• What do the numbers 10-6-4 represent in fertilizers?
• What role do roots play in a tree's structure?
• Which of the following is NOT a level of plant classification?
• Where should the removal cut be made when taking off a dead limb over 2 inches in diameter?
• In what order do you pass through the layers of a tree when cutting with a chainsaw?
• Why is it recommended to use a block when lowering a heavy limb?
• What is the term for the area between the nodes of a twig?
• Is fertilizer always recommended at the time of planting?
• Which license is required for an arborist to apply pesticides?
• When calculating the amount of fertilizer needed for a 2,000 sq. ft. area using a 13-13-13 fertilizer, how much fertilizer is required for 2 lbs. of actual N?
• What does the mortality spiral in plants refer to?
• What is an extensive planting of the same plant species known as?
• Under what condition may a tree not respond immediately to fertilizer application?
• What is the first step when cutting down a large limb?
• What aspect of fertilizer application can slow-release fertilizers help mitigate?
• Which of the following is not typically a function of tree leaves?
• What is the impact of unbalanced soil pH on trees?
• What is the most critical time for tree care after transplanting?
• What type of fertilizer do manure and sewer sludge represent?
• What happens if the hinge is too narrow during a tree felling?
• What type of organism is Mistletoe, and how does it affect trees?
• Which part of the tree is primarily responsible for water and nutrient transportation?
• A pH of 5 is how many times more acidic than a pH of 7?
• What term is used for the process of classifying living organisms?
• What is an advantage of not pruning a tree at planting time?
• When planning to fell a tree with a significant lean, what must be carefully assessed?
• What are the common causes of plant disease?
• What is the primary function of leaves in a plant?
• Which of the following is a common symptom of plant disease caused by pathogens?
• Should construction fences be placed close to the trunk of a tree?
• Iron and manganese may be in a chemical form that is unavailable to trees if the pH level is too alkaline. Is this statement true or false?
• Which of the following is NOT a function of tree leaves?
• What are curling and cupping of the foliage, and parallel venation, common symptoms of?
• What is swollen plant tissue, often insect or mite induced, called?
• What is the term for the naming of things in biology?
• What group of plants do grasses, banana, and palm trees belong to, which have only one seed leaf?
• What is the term for the tendency of terminal buds to inhibit the growth of lateral buds?
• What is the term for a split that occurs when the back cut is completed and a tree leans?
• The overriding objective of an arborist involved in a development project is to save every tree on the site. Is this statement true or false?
• What is typically the result of a tree's reaction wood?
• When conducting a soil analysis, which detail is crucial for understanding potential nutrient availability?