Deck 24: Maintaining Landscape Plants

Question 1

Much of the winter damage to evergreens can be avoided with proper summer and autumn watering.

Answer 1

True

Question 2

Trees grow as well with fertilization as they do without it; therefore it is an unnecessary expense.

Answer 2

False

Question 3

A ring of mulch around the base of a tree can protect it from damage during mowing.

Answer 3

True

Question 4

An air spade moves soil particles and mulch, but also runs the risk of seriously injuring the root system.

Question 5

Annuals are the only plants that benefit from pinching back.

Question 6

Most herbicides used in flower planting become ineffective if the soil is disturbed after application.

Question 7

Annuals are fertilized in late summer to keep them lush and healthy.

Question 8

If winters are harsh, anchoring edging material is best.

Question 9

Managing the landscape in a manner that optimizes plant health is the best way to control pests.

Question 10

Radial trenching is a technique used in the irrigation of trees and shrubs.

Question 11

When irrigating, enough water should be applied to wet the soil to what depth?

A) 6 to 12 inches
B) 12 to 16 inches
C) 18 to 20 inches
D) 16 to 18 inches

Question 12

Moist mulch against the trunk of trees can cause injury from moisture and microbes. What size should the mulch-free zone be around older trees?

A) 8 to 12 inches
B) 6 to 8 inches
C) 4 to 6 inches
D) 2 to 4 feet

Question 13

A maintenance program generally will include the following tasks: fertilizing, aerating, mulching, edging, pruning, pest control, winterization, and ____________________.

A) watering
B) feeding fish
C) consulting
D) fee collection

Question 14

____________________ is a reaction to fertilizer.

A) Leaf rot
B) Plant vigor
C) Foliar burn
D) Stunted growth

Question 15

When edging a bed with an edging tool, the tool is dug into the ground to what depth for removal of the soil wedge?

A) 2 to 4 inches
B) 4 to 6 inches
C) 6 to 8 inches
D) 8 to 10 inches

Question 16

The edge of the foliage canopy is termed the ____________________.

A) fertilizer zone
B) drip line
C) root leeway
D) contour limit

Question 17

What is the difference between hard pinching and soft pinching of annual flowers?

A) The ease or difficulty of performing the task
B) The amount of plant material removed
C) The time of year when it is done
D) The labor required

Question 18

____________________ trenching cuts narrow slits in a spoke pattern around the tree.

A) Parallel
B) Radial
C) Plane
D) Drill

Question 19

For dry fertilizer application to a tree, how deep should the holes be drilled?

A) 1 to 2 feet
B) 2 to 4 feet
C) 4 to 6 inches
D) 6 to 8 inches

Question 20

Pinching removes the ____________________ shoot on each branch of the flower.

A) fibrous
B) vascular
C) vertical
D) terminal

Question 21

If fertilizer is allowed to touch the foliage, ____________________ may result.

Question 22

____________________ is used to describe steel or plastic strips, or the cutting of a sharp line of separation between planting beds and the lawn.

Question 23

Initially, watering must promote deep _____________________ development by the plant.

Question 24

Shrubs will respond to proper ____________________ with lush growth, greater resistance to pests, and less winter damage.

Question 25

Fertilizer should not be allowed to touch the ____________________.

Question 26

High-pressure injection uses concentrated ____________________ fertilizers.

Question 27

The one most common mistake in the fertilization of landscape plants is the application of fertilizer too ____________________ in the growing season.

Question 28

An aeration technique that utilizes drilled holes filled with coarse compost and/or sand and pea gravel is ____________________.

Question 29

No components of the landscape require more maintenance time than ____________________ plantings.

Question 30

Many summer annuals must be continually tended to remove dead flower blossoms, a practice termed ____________________.