CATS Pruning Standards and Cuts 2

Question 1

What is the primary reason to avoid leaving a stub when removing a branch?

Accepted Answer

It prevents formation of wound wood and leads to decay

Answer

It looks unsightly to clients

Answer

It makes future pruning harder

Answer

It increases water sprout production

Question 2

According to ANSI A300 standards, which pruning type removes live branches to reduce overall tree size while maintaining form?

Accepted Answer

Crown reduction

Answer

Crown cleaning

Answer

Crown raising

Answer

Crown restoration

Question 3

When making a reduction cut, the lateral branch retained should be at least what fraction of the diameter of the removed branch?

Accepted Answer

One-third

Answer

One-quarter

Answer

One-half

Answer

Two-thirds

Question 4

Which term describes removing only dead, dying, diseased, or weakly attached branches from the crown?

Accepted Answer

Crown cleaning

Answer

Crown thinning

Answer

Crown lifting

Answer

Deadwooding

Question 5

A flush cut that removes the branch collar is problematic because it:

Accepted Answer

Both increases wound size and removes the defensive zone

Answer

Creates too large an entry wound for decay

Answer

Removes the zone of tissue richest in defensive chemicals

Answer

Stimulates excessive epicormic growth

Question 6

The three-cut method for removing heavy branches prevents:

Accepted Answer

Bark tearing caused by the weight of a falling limb

Answer

Formation of water sprouts

Answer

Excessive wounding of the branch collar

Answer

Spread of canker diseases

Question 7

Which pruning practice is classified as a lion-tailing and is discouraged by ANSI A300?

Accepted Answer

Removing all live branches from the inner crown and leaving foliage only at branch tips

Answer

Thinning the upper canopy to admit more light to understory plants

Answer

Removing co-dominant stems from young trees

Answer

Pruning trees during active insect transmission periods