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@arboristpass.comOct 15, 2026, 11:02 PM

Free lesson: types of pruning cut and how to sequence them. Removal vs reduction cuts, the branch collar, and the three-cut method. Pruning is 14% of the exam. 🌳

arboristpass.com/free/types-of-pruning-cut-and-how-to-sequence-them #Trees #Arborist #TreeCare

ArboristPass: Pruning cuts, and how to sequence them. Domain 5: Pruning (14% of the exam); Removal, reduction and heading cuts; Quiz, flashcards and a study sheet. FREE, No sign-up. Independent course, not affiliated with or endorsed by ISA.
@arboristpass.comOct 15, 2026, 12:02 PM

Question of the day 🌳 (Tree Identification and Selection)

A maple's paired, winged fruit is a:

A. Samara
B. Drupe
C. Pome
D. Legume

Answer upside down at the bottom of the image.

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

Question of the day 🌳 (Tree Identification and Selection): A maple's paired, winged fruit is a: A: Samara. B: Drupe. C: Pome. D: Legume. Printed upside down: Answer A, Samara.
@arboristpass.comOct 14, 2026, 11:02 PM

Number to know 🌳 Planting hole

2–3 times the root ball width; no deeper than the ball; root flare at or slightly above grade

The course: arboristpass.com #Trees #Arborist #TreeCare

Number to know. Identification, selection and planting: Planting hole. 2–3 times the root ball width; no deeper than the ball; root flare at or slightly above grade
@arboristpass.comOct 14, 2026, 4:02 PM

Aftercare: water, mulch, support and young-tree pruning, at a glance 🌳

The lesson's summary on one page: save it for revision.

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

At a glance: Aftercare: water, mulch, support and young-tree pruning. Task: Watering; Standard practice: Root ball often at first, then wider, deeper and less often. Task: Mulch; Standard practice: 2–4 in (5–10 cm), wide circle, off the trunk. Task: Support; Standard practice: Only if needed; flexible; remove after about one season. Task: Pruning; Standard practice: Structural: dominant leader, spaced scaffolds, small cuts. Task: Plan; Standard practice: Written pruning and PHC plan; engage the community.
@arboristpass.comOct 14, 2026, 12:02 PM

Question of the day 🌳 (Diagnosis and Treatment)

Which comes first in plant health care?

A. Prevention
B. Chemical treatment
C. Tree removal
D. Fertilizing every tree

Answer upside down at the bottom of the image.

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

Question of the day 🌳 (Diagnosis and Treatment): Which comes first in plant health care? A: Prevention. B: Chemical treatment. C: Tree removal. D: Fertilizing every tree. Printed upside down: Answer A, Prevention.
@arboristpass.comOct 13, 2026, 11:02 PM

Flashcard 🌳 Volcano mulch: Mulch piled on the trunk

Rot, pests and girdling roots.

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

Flashcard. Mistake: Volcano mulch, Mulch piled on the trunk. Rot, pests and girdling roots.
@arboristpass.comOct 13, 2026, 12:02 PM

Question of the day 🌳 (Safe Work Practices)

Kickback is most likely when:

A. The upper tip of the guide bar touches wood
B. The lower edge of the bar cuts
C. The saw is at full throttle in the cut
D. The chain brake is engaged

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

Question of the day 🌳 (Safe Work Practices): Kickback is most likely when: A: The upper tip of the guide bar touches wood. B: The lower edge of the bar cuts. C: The saw is at full throttle in the cut. D: The chain brake is engaged. Printed upside down: Answer A, The upper tip of the guide bar touches wood.
@arboristpass.comOct 12, 2026, 11:02 PM

Assessing damage and risk 🌳

✓ How much of the root system was lost
✓ Which side, and how close to the trunk
✓ New lean, soil heave or cracks
✓ Trunk and crown wounds

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

Checklist: Assessing damage and risk. How much of the root system was lost. Which side, and how close to the trunk. New lean, soil heave or cracks. Trunk and crown wounds.
@arboristpass.comOct 12, 2026, 4:02 PM

PPE and climbing gear 🌳

✓ Select the right PPE and gear for each task
✓ Inspect before every use
✓ Wear it correctly
✓ Clean, dry, store away from sun and chemicals; keep records
✕ Keep using damaged gear

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

PPE and climbing gear. Do: Select the right PPE and gear for each task. Do: Inspect before every use: cuts, wear, glazing, stitching. Do: Wear it correctly: straps fastened, carabiners locked. Do: Clean, dry, store away from sun and chemicals; keep records. Don't: Keep using damaged gear: retire it. When in doubt, take it out of service.
@arboristpass.comOct 12, 2026, 12:02 PM

Question of the day 🌳 (Tree Risk Management)

After a storm, screening many roadside trees quickly for obvious defects calls for:

Options in the image, answer upside down at the bottom.

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

Question of the day 🌳 (Tree Risk Management): After a storm, screening many roadside trees quickly for obvious defects calls for: A: A Level 1 limited visual assessment. B: A Level 3 assessment of every tree. C: No assessment. D: Root collar excavation on each tree. Printed upside down: Answer A, A Level 1 limited visual assessment.
@arboristpass.comOct 11, 2026, 11:02 PM

Sit the exam before exam day: 3 full mock exams in the real format, 200 questions in 3.5 hours, with a score for every domain so you know what to revise.

Included in the $129 course.

arboristpass.com/course #Trees #Arborist #TreeCare

ArboristPass: Sit the exam before exam day. 3 full mock exams, 200 questions each; Timed: 3.5 hours, 76% to pass; A score for every domain. $129, Course + mocks · 12 months. Independent course, not affiliated with or endorsed by ISA.
@arboristpass.comOct 11, 2026, 5:02 PM

Did you know? 🌳 pH

7 is neutral; most trees prefer slightly acidic soil. High pH locks up iron and manganese (interveinal chlorosis).

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

Did you know? pH. 7 is neutral; most trees prefer slightly acidic soil. High pH locks up iron and manganese (interveinal chlorosis). From the lesson Soil chemistry and biology: pH, CEC and mycorrhizae.
@arboristpass.comOct 11, 2026, 12:02 PM

Question of the day 🌳 (Safe Work Practices)

An emergency plan should include:

Options in the image, answer upside down at the bottom.

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

Question of the day 🌳 (Safe Work Practices): An emergency plan should include: A: Who does what, how to call for help, and the nearest hospital. B: Only the client's phone number. C: The chipper's serial number. D: Nothing; emergencies can't be planned. Printed upside down: Answer A, Who does what, how to call for help, and the nearest hospital.
@arboristpass.comOct 10, 2026, 11:02 PM

On the job 🌳 Try this week:

Collect twigs from five species and label the buds, leaf scars and bud scale scars.

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

On the job: Collect twigs from five species and label the buds, leaf scars and bud scale scars. From the lesson Identifying trees by leaves, twigs and buds.
@arboristpass.comOct 10, 2026, 5:02 PM

Did you know? 🌳 Distances

Unqualified: 10 ft (3 m) up to 50 kV, farther above; includes tools and equipment; qualified workers use Z133 tables and PPE.

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

Did you know? Distances. Unqualified: 10 ft (3 m) up to 50 kV, farther above; includes tools and equipment; qualified workers use Z133 tables and PPE. From the lesson Electrical hazards and minimum approach distances.
@silverstartree.bsky.socialOct 10, 2026, 2:00 PM

🏗️ When the Big Equipment Comes Out 🌲

With the right equipment and careful planning, large sections can be controlled and removed around nearby homes and property.

👉 silverstartree.com

#SilverStarTree #TreeRemoval #CraneWork #TreeService #Arborist #OkanaganTreeService

Photo, no description
@arboristpass.comOct 10, 2026, 12:02 PM

Question of the day 🌳 (Tree Biology)

Water-conducting cells in conifers are mainly:

A. Vessels
B. Sieve tubes
C. Tracheids
D. Ray cells

Answer upside down at the bottom of the image.

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

Question of the day 🌳 (Tree Biology): Water-conducting cells in conifers are mainly: A: Vessels. B: Sieve tubes. C: Tracheids. D: Ray cells. Printed upside down: Answer C, Tracheids.
@arboristpass.comOct 9, 2026, 11:02 PM

Choosing the level 🌳

1. Many trees, find the worst: Level 1
2. Individual tree, standard assessment: Level 2
3. Specific concern needs more data: Level 3
4. Agree the scope in writing: Level, trees, limitations

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

Step by step: Choosing the level. 1. Many trees, find the worst: Level 1. 2. Individual tree, standard assessment: Level 2. 3. Specific concern needs more data: Level 3. 4. Agree the scope in writing: Level, trees, limitations.
@arboristpass.comOct 9, 2026, 4:02 PM

Handling planting stock 🌳

✓ Lift by the root ball or container
✓ Keep roots moist and shaded
✓ Heel in bare-root trees if planting is delayed
✓ Cover trees in transit
✓ Plant promptly
✕ Lift by the trunk

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

Handling planting stock. Do: Lift by the root ball or container. Do: Keep roots moist and shaded. Do: Heel in bare-root trees if planting is delayed. Do: Cover trees in transit. Do: Plant promptly. Don't: Lift by the trunk: it breaks roots away from the ball. Covering trees in transit stops wind drying the leaves and bark.
@arboristpass.comOct 9, 2026, 12:02 PM

Question of the day 🌳 (Soil Management)

On a fertilizer label reading 10-6-4, the first number is the percentage of:

A. Phosphate
B. Potash
C. Nitrogen
D. Organic matter

Answer upside down at the bottom of the image.

Free lessons: arboristpass.com/free #Trees #Arborist #TreeCare

Question of the day 🌳 (Soil Management): On a fertilizer label reading 10-6-4, the first number is the percentage of: A: Phosphate. B: Potash. C: Nitrogen. D: Organic matter. Printed upside down: Answer C, Nitrogen.
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