Certified Arborist Test Diagnosis and Treatment 4

Question 1

A tree exhibits chlorosis (yellowing) only on new growth while older leaves remain green. Which nutrient deficiency is most likely?

Accepted Answer

Iron

Answer

Nitrogen

Answer

Potassium

Answer

Phosphorus

Question 2

What is the recommended approach for treating a tree with bacterial wetwood (slime flux)?

Accepted Answer

No treatment is typically recommended; maintain overall tree health

Answer

Install a drain tube to release pressure

Answer

Remove affected branches and apply wound dressing

Answer

Apply systemic antibiotics via trunk injection

Question 3

Which diagnostic tool uses sound waves to detect internal decay in trees?

Accepted Answer

Sonic tomograph

Answer

Resistograph

Answer

pH meter

Answer

Refractometer

Question 4

A tree has mushroom fruiting bodies at its base. What does this most likely indicate?

Accepted Answer

Root or butt rot caused by wood-decay fungi

Answer

The tree is healthy and well-nourished

Answer

Normal mycorrhizal activity

Answer

The tree needs more water

Question 5

When treating a tree for nutrient deficiency, which application method provides the fastest response?

Accepted Answer

Foliar spray

Answer

Soil amendment

Answer

Deep root fertilization

Answer

Mulch application

Question 6

What is the significance of a cavity in a tree trunk that holds water?

Accepted Answer

It accelerates internal decay and should be drained

Answer

It provides beneficial moisture to the tree

Answer

It indicates the tree has sealed the wound successfully

Answer

It has no significance for tree health

A tree exhibits chlorosis (yellowing) only on new growth while older leaves remain green.Which nutrient deficiency is most likely?