Lab Final

Question 1

Biennial

Answer 1

Complete life cycle in 2 years

Question 2

Inflorescence

Answer 2

Seedhead

Question 3

Liquid fertilizer

Answer 3

Flexible (tank mix)

Uniform application

Reduces labor

Question 4

Answer 4

Goosegrass

Question 5

Winter annual

Answer 5

Germinate in summer, die in spring

Question 6

Pink-white patches with red-brown borders. Favors cooler weather, snow cover enhances

Answer 6

Pink snow mold

Question 7

Auricle

Answer 7

Appendages at the edges of the leaf blade base

Question 8

Rhizome

Answer 8

An underground stem that produces a new plant

Question 9

Twisting “fish hook” at the leaf tip.

Answer 9

Grey leaf spot

Question 10

Vernation

Answer 10

Refers to the manner in which new blades emerge from the sheath

Question 11

“Hourglass”, usually size of a silver dollar. Common on bentgrass putting greens.

Answer 11

Dollar spot.

Question 12

Type of weed

Yellow nutsedge

Answer 12

sedge

Question 13

List two management practices that can be used to reduce lawn disease problems.

Answer 13

Irrigation, aeration

Question 14

Greasy patches. Spreads via water and equipment.

Answer 14

Pythium blight

Question 15

Leaf blade

Answer 15

Portion of the leaf above the collar

Question 16

Example of pre-emergent herbicide

Answer 16

Specticle for goosegrass

Question 17

Type of weed

goosegrass

Answer 17

grass

Question 18

Preemergence herbicide

Answer 18

Usually only effective on non-germinated weeds.

Pendimethalin

Question 19

Dry fertilizer

Answer 19

Cheaper equipment

Reduced risk of mixing problem

Question 20

Tan lesions with dark boarders on the leaf. Mycelia on dewy mornings. Most common disease on Tall Fescue.

Answer 20

Brown patch

Question 22

Type of weed

Crabrass

Answer 22

grass

Question 23

Collar region

Answer 23

The part of the shoot around the collar

Question 24

Perennial

Answer 24

Live more than 2 years

Question 25

Answer 25

Windmillgrass

Question 26

Bright orange margins. Few feet to several feet in diameter. Most common in zoysiagrass, spring and fall.

Answer 26

Rhizomal patches

Question 27

Answer 27

Henbit

Question 28

What is the guaranteed analysis on a fertilizer bag?

Answer 28

Listing of nutrients by weight

Question 29

Quick release nitrogen

Answer 29

Ammonium nitrate

Ammonium sulfate

Question 30

What are the three main components of the disease triangle?

Answer 30

Environment, host, pathogen

Question 31

Type of weed

Henbit

Answer 31

broadleaf

Question 32

Grassy

Answer 32

Hard to identify because they closely resemble desirable grasses

Question 33

Leaf sheath

Answer 33

The basal portion of the leaf that encloses the stem

Question 34

Postemergence herbicide

Answer 34

Usually only effective on visible weeds.

Dicamba

Question 35

Answer 35

Crabgrass

Question 36

Venation

Answer 36

Presence or absence of visible veins on leaf blade

Question 37

Summer annual

Answer 37

Germinate in spring, die in fall

Question 38

Stolon

Answer 38

A horizontal, above ground stem that takes root at various intervals and gives rise to new plants

Question 39

Broadleaf

Answer 39

Wide leaves with main vain leading to smalle veins branching from the main

Question 40

Ligule

Answer 40

Membranous or hairy structure at the base of the leaf blade

Question 41

Collar

Answer 41

Where the leaf blade and leaf sheath join

Question 42

Answer 42

Yellow Nutsedge

Question 43

Slow release nitrogen

Answer 43

IBDU (isobutylidene)

Sulfur coated urea