Certified Arborist Test Installation and Establishment 3

Question 1

What is 'transplant shock' and how long can it last?

Accepted Answer

Stress from root loss during transplanting; can last 1-3 years

Answer

A disease caused by root pathogens; lasts 2 weeks

Answer

Sunburn on newly exposed bark; lasts one season

Answer

Damage from improper staking; permanent

Question 2

Which soil amendment is most universally recommended when backfilling a tree planting hole?

Accepted Answer

The original native soil without amendments

Answer

Peat moss

Answer

Sand to improve drainage

Answer

Fresh compost mixed 50/50 with soil

Question 3

What is the recommended ratio of root ball diameter to planting hole width?

Accepted Answer

2-3 times wider

Answer

Same diameter

Answer

1.5 times wider

Answer

5 times wider

Question 4

A newly planted tree shows leaf scorch on the south-facing side. What is the most likely cause?

Accepted Answer

Sunscald from sudden exposure to direct sun

Answer

Root rot

Answer

Herbicide drift

Answer

Nitrogen toxicity

Question 5

When is the best time to plant most deciduous trees in temperate climates?

Accepted Answer

Fall after leaf drop or early spring before bud break

Answer

Mid-summer during active growth

Answer

Late spring when leaves are fully expanded

Answer

Winter during dormancy only

Question 6

What is 'girdling root' and why is it a problem for newly planted trees?

Accepted Answer

A root that encircles the trunk, eventually restricting water and nutrient flow

Answer

A root that grows straight down, causing instability

Answer

A surface root that is exposed to air

Answer

A root that grows into neighboring properties