CATS Arborist Albuquerque Tree Health & Disease Management 3

Question 1

Which symptom most strongly indicates Verticillium wilt infection in a landscape tree?

Accepted Answer

Sudden wilting of one branch or side of the tree with green wood staining

Answer

White mycelium visible on bark surface

Answer

Yellowing of all leaves simultaneously

Answer

Gall formation on major stems

Question 2

What is the most effective long-term management strategy for a tree with Cytospora canker?

Accepted Answer

Prune infected branches to healthy tissue, improve tree vigor, and avoid wounds

Answer

Apply copper fungicide to all foliage weekly

Answer

Remove all bark on the trunk to expose infected tissue

Answer

Inject antibiotics into the root zone

Question 3

Which assessment tool does an arborist use to detect internal wood decay without damaging the tree?

Accepted Answer

Resistograph or sonic tomography

Answer

Increment borer only

Answer

Soil probe

Answer

Sap flow meter

Question 4

Fire blight is a bacterial disease that primarily affects which tree families common in Albuquerque landscapes?

Accepted Answer

Rosaceae (apples, pears, flowering crabapples)

Answer

Pinaceae and Cupressaceae

Answer

Fagaceae (oaks)

Answer

Salicaceae (cottonwoods, willows)

Question 5

What does a low trunk flare with buried root collar indicate to an arborist assessing tree health?

Accepted Answer

Improper planting depth or soil buildup that can cause crown and root decay

Answer

The tree was recently transplanted with proper technique

Answer

The tree is well-adapted to local soils

Answer

Nitrogen toxicity from over-fertilization

Question 6

Which nutrient deficiency is most commonly corrected through trunk injection in Albuquerque's high-pH soils?

Accepted Answer

Iron

Answer

Calcium

Answer

Phosphorus

Answer

Nitrogen

Question 7

What is 'phenology' as it relates to tree pest management?

Accepted Answer

The study of seasonal biological events used to time pest control treatments

Answer

The chemistry of pesticide breakdown in soil

Answer

The measurement of pheromone trap catches

Answer

The identification of fungi by their spore morphology