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Kansas Department of Agriculture > Turf Pest Control > Flashcards

Turf Pest Control Flashcards

1
Q

List three items included in turf grass management.

A
  • Proper grass selection
  • Mowing
  • Thatch control
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2
Q

An example of a cool season grass is

A

bluegrass

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3
Q

What causes all serious infectious diseases in the mid-west?

A

fungi and nematodes

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4
Q

How can trimming shrubs provide disease control in turf?

A

More sun and airflow can circulate around turf?

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5
Q

The first step in the control of any turf grass disease is

A

accurate diagnosis

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6
Q

To diagnose turf grass diseases, the following is important

A
  • review cultural and chemical practices
  • determining the overall distribution of the disease
  • observe symptoms on individual plants
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7
Q

The optimum temperature for pink snow mold is:

A

45 to 32 F

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8
Q

Drechslera melting-out disease is caused by a:

A

Fungus

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9
Q

From a distance, rust infected turf appears:

A

dull yellow

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10
Q

The best means of avoiding and controlling smut is to:

A

plant smut resistant bluegrass varieties

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11
Q

Control powdery mildew by:

A

pruning trees and shrubs to increase sunlight

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12
Q

In the control of large patch fungus, it is important to:

A

avoid overwatering in fall and early spring

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13
Q

Spring dead spot is the most common and destructive disease of

A

bermudagrass

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14
Q

Fairy ring is caused by:

A

Fungi

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15
Q

Necrotic ring spot symptoms may be confused with summer patch and ___

A

fairy ring

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16
Q

Damping-off seed rot is caused by:

A

fungi

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17
Q

Under favorable environmental conditions and mowing heights greater than ___ inches, dollar spots may exceed 6 inches in diameter.

A

2

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18
Q

Rhizoctonia brown patch is the most common and important disease on

A

tall fescue

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19
Q

In the control of brown patch ___ is important.

A
  • proper fertilization
  • proper irrigation
  • proper air circulation
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20
Q

Summer patch is:

A

extremely difficult to control

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21
Q

Nematodes are:

A
  • harmless
  • beneficial
  • plant parasitic
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22
Q

Slime molds are ___ parasitic on plants.

A

not

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23
Q

Chlorosis is when the turf becomes ___ in color.

A

yellowish

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24
Q

Moss occurs in lawns with:

A
  • low fertility, high acidity
  • poor drainage, compaction
  • excess shade
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25
Q

Knotweed and spurge are examples of

A

broadleaf summer annual weeds

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26
Q

___ are the most difficult weeds to control in turf grass.

A

perennial grass weeds

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27
Q

When should warm season grasses be fertilized?

A

Between mid-May and mid-August

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28
Q

___ is a low growing compact, tufted winter annual that does not have rhizomes and has leaves that are soft light green and boat-shaped at the tip.

A

annual bluegrass

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29
Q

Common chickweed:

A

is found frequently in the shade

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30
Q

___ forms a large rosette with the leaves often tinted reddish colored with crinkled edges; it does not usually flower when growing in lawns.

A

curly dock

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31
Q

___ is a warm season grass found frequently in thin bluegrass stands; it has flattened stems which are whitish near the base and a very fibrous root system that is hard to pull.

A

goosegrass

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32
Q

Henbit:

A

usually blossoms in the early spring

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33
Q

___ is a winter annual and may be confused with dandelions since the leaves form a rosette in the fall.

A

sheperdspurse

34
Q

The thistle is a

A

perennial or bennial

35
Q

The common yarrow is:

A

strongly scented

36
Q

A preemergence herbicide:

A
  • is applied to the soil
  • works best on annuals
  • stops growth of the seed
37
Q

2,4-D is an example of a:

A

selective postemergence herbicide

38
Q

Why is it dangerous to apply ester formulations around ornamentals?

A

volatilization or vapor hazards

39
Q

When are granular formulations of postemergence herbicides more effective?

A
  • When weeds are damp

- when applied in late evening or early morning

40
Q

The following is true concerning gravity flow liquid applicators:

A

eliminate drifting

41
Q

A “hose end” sprayer is a common name used for:

A

water pressure applicators

42
Q

A common factor influencing weed control with soil-applied herbicides and foliage-applied herbicides is:

A

spray additives

43
Q

How can spray drift and possible damage to non target plants be minimized?

A

apply spray when wind is less than 10 mph

44
Q

Spraying equipment used for phenoxy herbicides:

A

should not be used for other pesticides unless thoroughly cleaned

45
Q

Where should pesticides not be stored?

A

in greenhouses

46
Q

Low pressure sprayers are:

A

used mainly on turf

47
Q

High pressure sprayer handguns are not usually recommended for:

A

Golf greens

48
Q

The following is true concerning turf grass pest control:

A

a working knowledge of common pests is important to control them

49
Q

What other problems can resemble insect damage?

A
  • improper mowing
  • fertilizer burn
  • the nature of a particular grass variety
50
Q

To check and see if the treatment method was successful or not is known as:

A

evaluation

51
Q

The following is true concerning thatch in lawns:

A

it is conducive to lawn disease

52
Q

The most destructive turf pest in Kansas is the:

A

bluegrass sod webworm

53
Q

How do sod web worms damage turf?

A

They chew off blades near the soil and expose the crown to the sun.

54
Q

When should control measures for sod webworms be considered?

A

If 2-4 webworms per 1 square foot are found.

55
Q

The buffalo grass sod webworm is a pest in:

A

Western Kansas

56
Q

When is injury from the buffalo grass sod webworm more severe?

A

hot, dry weather

57
Q

Why is it hard to detect buffalo sod webworm caterpillars?

A
  • they hide in tunnels underground

- They are not affected by the water-detergent mixture which exposes most insects

58
Q

When should you treat turf for cutworm damage.

A

there is no set time for these insects; you must watch for their damage.

59
Q

What is buffalo grass sod webworm damage?

A
  • spots on turf with leaf blades missing and silk tubes across surface of soil
  • pulling on infested grass may not remove roots because damaged stems break off easily
  • the loss of leaves exposes grass stem to sun and may kill crown
60
Q

___ are frequently confused with chinch bugs; however, they eat other small insects and should be protected.

A

big eyed bugs

61
Q

Chinch bugs are usually more damaging during:

A

hot, dry weather

62
Q

The following is true concerning ants:

A

they have a narrow waistline and may be winged or wingless

63
Q

How many summers can “May beetle” white grubs feed on turf grass before they become adults?

A

3

64
Q

Lawns infested with the c-shaped white grubs often attract ___ which may tear up the sod searching for them.

A

Moles and skunks

65
Q

When applying granular insecticides to treat white grubs remember:

A

that thatch will reduce their effectiveness

66
Q

What are the differences between white grubs and bill bug grubs?

A

billbug grubs have no legs and white grubs have 6

67
Q

Symptoms of billbug grub infestation:

A
  • resemble white grub damage

- are small patches of brown or dying sod

68
Q

The black turf grass grub (Ataenius spretulus) is:

A

a pest of bent grass golf course greens

69
Q

Which species of skunk is protected by Kansas regulations?

A

spotted skunk

70
Q

The best method for controlling skunks is:

A

removal and relocation

71
Q

A permanent mole tunnel can be identified by:

A

a circular mound of dirt

72
Q

The best method of mole control is:

A

trapping

73
Q

When is the best time to control pocket gophers?

A

spring

74
Q

When using poison grain to control pocket gophers, what is the best method of application?

A

using a burrow builder

75
Q

Fumigation for pocket gophers is of limited use because:

A

contamination of ground water will always result after the gophers are poisoned

76
Q

Phytotoxicity is:

A

undesirable injury to plants

77
Q

Crop rotation on soils containing pesticide residue:

A

may damage or kill plants

78
Q

Cool season turf grasses include ___. Herbicides which control weeds in warm season grasses may injure or kill these plants.

A

bluegrasses and fescues

79
Q

What are two types of spray drift associated with pesticides?

A

spray droplet and vapor drift

80
Q

Airblast sprayers should never be used to apply:

A

herbicides

81
Q

Postemergence herbicides generally last ___ depending on the specific herbicide involved.

A

1-2 days to 3-4 weeks

82
Q

How can commercial applicators prevent pesticide hazards to humans when spraying turf grass?

A
  • make sure you thane the correct yard before spraying
  • remove all clothing from the area
  • sweep or rinse away spray puddles

Kansas Department of Agriculture (3 decks)

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