ISA Arborist Study Guide Sample test Questions and Answers 2023 When cutting through a tree with a chain saw or drilling into a tree, you would pass through (in order) - Correct Answer Bark, phloem, cambium, xylem If the terminal bud is removed in pruning: - Correct Answer Growth may be stimulated in lateral buds Visible because of the rapid growth rate of earlywood relative to latewood, can be counted on to approximate trees age, can give information about growth conditions in
previous years. - Correct Answer The growth rings of a tree:
layer of cells is responsible for outward growth and increased girth of tree. - Correct Answer Cambium A symbiotic relationship between fungi and roots. - Correct Answer Mycorrhizae are: They are not in the same genus. - Correct Answer Douglas-fir (Pseudotsuga menziesii)
differs from balsam fir (Abies balsamea) in that:
When two leaves and/or buds are located at the same node on a twig. - Correct Answer
Opposite leaf arrangement is:
Scientific name of Red Oak. - Correct Answer Quercus rubra This genus of tree usually does not have an opposite leaf arrangement. - Correct Answer Quercus (Oak) These conifers have needles in bundles. - Correct Answer Pines The primary factor in controlling the depth, spread, and distribution of tree roots in the
soil is/are: - Correct Answer Available oxygen and water
Are in the upper 6 inches of soil. - Correct Answer The most fibrous and absorptive portion of a tree's root system is found in?If a planting hole in a clay soil site is backfilled with sandy soil. - Correct Answer Water will drain very slowly out of the planting hole.Total pore space and the percentage of macropores are reduced. - Correct Answer
When soil is compacted:
They tend to become alkaline, and salts build up due to the lack of heavy rainfall. - Correct Answer A characteristic of sandy soils in arid regions is: 1 / 2
Infrequent, deep soakings are preferable to frequent, shallow waterings. - Correct
Answer When irrigating trees:
Have a higher infiltration rate than clay soils. - Correct Answer Sandy soils:
Gravitational water has drained away. - Correct Answer A soil is at field capacity when: Less frequent waterings of longer duration will reduce the likelihood of salt buildup, water hitting the soil surface can lead to crusting, application rates that exceed
absorption can lead to runoff. - Correct Answer With sprinkler irrigation:
Placing gravel in the bottom of the planting hole and backfilling with a sandy soil. - Correct Answer In sites where poor drainage can be a problem, which of the following WILL NOT help ensure plant survival?80 pound bag of 10-6-4 fertilizer contains how many pounds of actual nitrogen? - Correct Answer 8 pounds of nitrogen A complete fertilizer contains? - Correct Answer Nitrogen, phosphorus, potassium A slow release fertilizer was applied, inadequate soil moisture, and a tree is suffering from collar rot - Correct Answer A tree may not respond immediately to a fertilizer
application if:
The soil may have adequate nutrients but something may be inhibiting uptake. - Correct Answer A soil test may not identify a nutrient deficiency problem in a plant because: Slow-release forms of nitrogen are sometimes desired. - Correct Answer Sulfur-coated urea/ or ureaformaldehyde is sometimes included in nitrogen fertilizers because: Low temperature extremes - Correct Answer The climate factor that determines
hardiness zones is:
Low growing to remain below the lines. - Correct Answer Trees planted under utility
lines should be:
Developing larger and thinner leaves, and variegated foliage losing variegation, or colored foliage tending to be greener. - Correct Answer Some trees acclimate to shade
conditions by:
Upright - Correct Answer Fastigiate trees have a growth form that is:
Some tree species are adapted to hot, dry, or bright light conditions with small , thick foliage and sicken stomata. - Correct Answer This is a true statement:
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