CATS Arborist Albuquerque Tree Health & Disease Management 2

Question 1

Which fungal disease commonly causes white powdery coatings on leaves of oaks and other trees in the Albuquerque area?

Accepted Answer

Powdery mildew

Answer

Powdery mildew is a fungal disease that produces white, powdery spore masses on leaf surfaces and is common on oaks and many other trees in arid climates.

Question 2

A tree in Albuquerque shows yellowing leaves with green veins. Which condition is most likely causing this symptom?

Accepted Answer

Iron chlorosis

Answer

Iron chlorosis causes interveinal yellowing (yellow leaves with green veins) and is common in Albuquerque due to the alkaline, calcareous soils that limit iron availability.

Question 3

What is the primary purpose of conducting a crown density assessment in tree health evaluation?

Accepted Answer

To estimate the percentage of live crown relative to total tree height

Answer

Crown density assessment evaluates the proportion of live, functional crown relative to total height, which reflects photosynthetic capacity and overall tree vigor.

Question 4

Which bark beetle species is a significant threat to piñon pines in the Albuquerque region?

Accepted Answer

Piñon ips beetle (Ips confusus)

Answer

The piñon ips beetle (Ips confusus) attacks drought-stressed piñon pines and has caused widespread mortality in the Albuquerque area, especially during drought years.

Question 5

When treating a tree with a systemic insecticide via soil injection, which factor most influences uptake speed?

Accepted Answer

Soil moisture level and tree transpiration rate

Answer

Systemic insecticide uptake through soil injection depends heavily on soil moisture and active tree transpiration, as water movement through the xylem carries the chemical upward.

(CATS) Certified Arborist Tree Service of Albuquerque Practice Test

(CATS) Certified Arborist Tree Service of Albuquerque Practice Test

CATS Arborist Albuquerque Tree Health & Disease Management 2