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ISA - Certified Arborist - Test Questions #2 – PRF Exam With 100% Correct Answers 2023
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ISA - Certified Arborist - Test Questions #2 – PRF Exam With 100% Correct Answers 2023
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ISA - Certified Arborist - Test Questions #2 – PRF Exam With 100% Correct Answers 2023What example of tree stressors can be classified as acute? PEB Pg42
- Lightning strike
- insufficient soil
- poor light exposure
- poor moisture conditions - Correct Answer-lightning strike
What is most likely NOT a possible cause of deformed leaves? PEB pg 42
- spray injury
- air pollution
- anthracnose
- frost - Correct Answer-Air pollution
What tree symptom is NOT likely to be caused by insect infestation? PEB Pg42
- leaf droop
- yellow specks
- off-color foliage
- leaves with a scorched appearance - Correct Answer-Leaves with a scorched appearance
What insect listed below is classified as having piercing or sucking mouthparts? PEB Pg43
- leafhoppers
- Beetles
- weevils
- borers - Correct Answer-leafhoppers
What herbicide type eliminates the whole of the plant over a short period of time? PEB Pg43
- Pre-emergent
- Contact
- Systemic
- Drench - Correct Answer-systemic
If a tree is suffering from girdling root, what is most likely NOT an advisable action? PEB
Pg43
- Remove the largest roots first
- Remove only the smallest roots
- Remove the tree - None of the above - Correct Answer-Remove the largest roots first
Which of the following is NOT classified as an insect? PEB Pg43
- Mites
- Beetles
- Moths
- Caterpillars - Correct Answer-Mites
What statement below is FALSE regarding vascular disease? PEB Pg44
- Examples include Dutch elm disease and oak wilt
- it is treatable if found in a reasonable timeframe
- it affects the flow of water and nutrients
- it originates from pathogens entering the plant - Correct Answer-it is treatable if found in a reasonable timeframe
Cellulose and lignin are a defense mechanism against predators by what means? PEB Pg44
- they give off an unfavorable flavor
- They can't be digested
- they have a poor taste
- They are toxic - Correct Answer-They can't be digested
A tree exhibits wounded areas of the lower trunk and some physical damage to surface roots. What is most likely the cause of injury? PEB Pg44
- Frost
- Poor soil conditions
- Lawnmower or machinery
- disease - Correct Answer-lawnmower or machinery
What is not one of the primary functions of the energy produced by photosynthesis? PEB Pg44
- maintenance
- growth
- aesthetics
- defense - Correct Answer-aesthetics
What statement below is TRUE regarding how a tree's growth rate and photosynthesis rate will react to the amount of available resources? PEB Pg45
- The growth rate will be limited before the photosynthesis rate
- The photosynthesis rate will be limited before the growth rate
- The photosynthesis and growth rate become hindered equally with limited resources
- The photosynthesis rate will not be hindered by limited resources - Correct Answer-
The growth rate will be limited before the photosynthesis rate What single resource has the most detrimental effect on a tree's ability to perform photosynthesis if limited? PEB Pg45
- Light
- Water
- CO2
- None of the above - Correct Answer-None of the above
What extract listed below is NOT an allelochemical classified as a natural insecticide? PEB Pg45
- Nicotine
- Lignin
- Rotenone
- Neem - Correct Answer-Lignin
A tree is identified as being in the mortality spiral when what has occurred? PEB Pg45
- the tree has begun to see detrimental stress factors
- the tree has seen an isolated but severely detrimental stress factor
- Cumulative stress factors have yielded a situation where very few actions can save the
tree.
- Any combination of stress factors has occurred over time - Correct Answer-Cumulative
stress factors have yielded a situation where very few actions can save the tree.
The foundational element of an appropriate response process (ARP) is which of the following? PEB Pg46
- monitoring
- immediate action
- establish thresholds
- readily available resources - Correct Answer-Monitoring
What is NOT a characteristic of any organism classified as a pest? PEB Pg46
- Threatens health or appearance of plants
- May also contribute to the surrounding landscape
- Provides competition to the local landscape
- Diminishes safety or enjoyment of an area - Correct Answer-May also contribute to the
surrounding landscape
Key stressors are identified by what criteria? PEB Pg46
- universally detrimental site conditions
- Retroactive analysis of stress
- Identifying local pests and conditions which may be detrimental.
- species specific historical stressors - Correct Answer-Identifying local pests and conditions which may be detrimental.
Key plants can be identified by which of the following criteria? PEB Pg46
- client specific indications
- specific species - susceptibility to specific pests
- all of the above - Correct Answer-all of the above
For a threshold temperature of 50°, determine the average degree day unit value for temperature over a 3-day span of 85°,76° and 82°. PEB Pg47
- 22°
- 26°
- 31°
- 45° - Correct Answer-31°
What statement regarding landscapes with a monoculture of plantings is true? PEB Pg47
- They are more susceptible to pest problems
- They are less susceptible to pest problems
- they are equally as susceptible to pest problems
- No correlation exists - Correct Answer-they are more susceptible to pest problems
What is NOT one of the three options available for plant health care professionals to manage pests?
- Manage
- Eradicate
- Suppress
- Prevent - Correct Answer-Manage
What is NOT a means of biological control for pest populations? PEB Pg47
- predators
- pathogens
- parasites
- miticides - Correct Answer-miticides
After application of pesticides, it is found that the original threat has died off, but a new contingency of mites has developed as a threat. This development is classified as which
of the following? PEB Pg48
- Pest insurgence
- Pest resurgence
- Primary outbreak
- secondary outbreak - Correct Answer-secondary outbreak
What type of alternative pesticide has the potential side effect of phytotoxic injury if used
during dry periods? PEB Pg48
- Insect growth regulator
- Microbial
- Insecticidal soap
- Horticultural oils - Correct Answer-horticultural oils
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