Chapter 3 Utility Pruning

Question 1

Utility pruning is the pruning of trees located in the vicinity of power lines for the purpose of __________ __________ __________.

Answer 1

Utility pruning is the pruning of trees located in the vicinity of power lines for the purpose of __________ __________ __________.
ensuring reliable service

Question 2

Which type of cuts are less unacceptable?

Answer 2

Which type of cuts are less unacceptable?
internodal cuts
(e.g. topping)

Question 3

Which type of cuts are more acceptable?

Answer 3

Which type of cuts are more acceptable?
nodal cuts
(e.g. drop-crotch, thinning)

Question 4

Where should the final cut be made for proper utility pruning?

Answer 4

Where should the final cut be made for proper utility pruning?
just outside of the branch bark ridge and the branch collar

Question 5

Flush cuts damage which tissues?

Answer 5

Flush cuts damage which tissues?

the trunk

Question 6

Why is utility pruning done?

Answer 6

Why is utility pruning done?

to maintain safety and rights-of-way

Question 7

Which type of pruning encourages the growth of branches away from the wires?

Answer 7

Which type of pruning encourages the growth of branches away from the wires?
directional pruning

Question 8

What is the maximum amount of foliage that should be removed in one growing season?

Answer 8

What is the maximum amount of foliage that should be removed in one growing season?
25%
(this is according to ANSI A300)

Question 9

When is it acceptable to deviate from the pruning standards?

Answer 9

When is it acceptable to deviate from the pruning standards?

during storm restoration

Question 10

In the U.S., pruning should be conducted according to __________ __________.

Answer 10

In the U.S., pruning should be conducted according to __________ __________.
ANSI A300

Question 11

Utility pruning removes the leaves and reduces a tree’s __________ growth, but remaining __________ may grow more.

Answer 11

Utility pruning removes the leaves and reduces a tree’s __________ growth, but remaining __________ may grow more.
overall;
shoots

Question 12

Utility pruning is mainly conducted to provide __________ from power lines.

Answer 12

Utility pruning is mainly conducted to provide __________ from power lines.
clearance

Question 13

Utility pruning should use __________ & __________ pruning principals

Answer 13

Utility pruning should use __________ & __________ pruning principals
natural & targeted

Question 14

Utility pruning should use __________ & __________ pruning principals

Answer 14

Utility pruning should use __________ & __________ pruning principals
natural & targeted

Question 15

Crown reduction removes main branches to lower limbs no less than __________ the diameter of the original limb.

Answer 15

Crown reduction removes main branches to lower limbs no less than __________ the diameter of the original limb.
1/3

Question 16

When pruning near conductors, overhanging branches can be left in place, depending on __________ __________ & __________ __________.

Answer 16

When pruning near conductors, overhanging branches can be left in place, depending on __________ __________ & __________ __________.
tree species & climate conditions

Question 17

A pruning cycle should be based on tree __________ __________.

Answer 17

A pruning cycle should be based on tree __________ __________.
growth rates

Question 18

__________ __________ __________ can be used to reduce growth and lengthen time between cycles.

Answer 18

__________ __________ __________ can be used to reduce growth and lengthen time between cycles.
tree growth regulators

Question 19

Which pruning style is most effective in preventing regrowth when pruning hardwoods?

Answer 19

Which pruning style is most effective in preventing regrowth when pruning hardwoods?
crown reduction

Question 20

True or False?
Wound dressings in most situations are effective in reducing decay, accelerating wound closure & preventing disease penetration.
false

Answer 20

True or False?
Wound dressings in most situations are effective in reducing decay, accelerating wound closure & preventing disease penetration.
false
wound dressings are not effective in most situations

Question 21

When is it okay to use wound dressings?

Answer 21

When is it okay to use wound dressings?

when such treatments are known to be effective (e.g. pruning oaks when/where they are susceptible to oak wilt)

Question 22

Sprout growth following pruning usually comes from __________ __________.

Answer 22

Sprout growth following pruning usually comes from __________ __________.
adventitious buds

Question 23

Clearance for decurrent hardwoods growing directly under conductors is best obtained by __________ __________.

Answer 23

Clearance for decurrent hardwoods growing directly under conductors is best obtained by __________ __________.
crown reduction

Question 24

Excurrent trees:

Answer 24

Excurrent trees:
one main leader
(e.g. pines, spruce)

Question 25

Decurrent trees:

Answer 25

Decurrent trees:
multiple leaders
(e.g. hardwoods)

Question 26

A model for the production of reaction zones

Answer 26

A model for the production of reaction zones
Compartmentalization of Decay in Trees
(CODIT)

Question 27

British Standards Institute Recommendations for Tree Work

Answer 27

British Standards Institute Recommendations for Tree Work

BS3998

Question 28

An interruption in the flow of electricity that could lead to fire or an outage

Answer 28

An interruption in the flow of electricity that could lead to fire or an outage
electrical shorts