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Texas Pesticide Applicator > Ornamental and Turf Plant Pest Control > Flashcards

Ornamental and Turf Plant Pest Control Flashcards

1
Q

Failure to correctly identify a pest can lead to:

A
  • Wrongful application of pesticide
  • Environmental damage
  • injury to desirable plants
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2
Q

___ ___ are factors that cause pest populations to rise and fall without any influence from humans.

A

Natural Factors

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3
Q

Proper irrigation, fertilization, mowing and pruning are all examples of good:

A

Cultural practices

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4
Q

Before establishing a turf or ornamental landscape you should consider:

A
  • cost
  • water requirements
  • shade tolerance
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5
Q

There are ___ elements required by plants to grow well.

A

sixteen

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6
Q

To keep from contaminating ___, you should mix and load pesticides 100 feet from water sources.

A

groundwater

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7
Q

The movement of pesticides through the air after application is referred to as:

A

Drift

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8
Q

The amount of time required for a pesticide to degrade after application is greatly influenced by:

A
  • Temperature
  • Moisture
  • Sunlight
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9
Q

Compounds that are added to spray solutions to decrease surface tension and cover the target area better are known as:

A

surfactants

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10
Q

These compounds are added to spray solutions to coat the plant and protect it from some plant pests.

A

Stickers

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11
Q

Most insecticides used for aphid control include:

A

contact or systemic

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12
Q

The color of the early nymphal stage of the chichi bug is:

A

orange

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13
Q

Damaging infestations of spider mites are most likely to occur during what kind of weather?

A

Hot and Dry

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14
Q

The egg-laying period for the June bug adult is:

A

30 days

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15
Q

Plant galls can be a result of feeding by:

A
  • aphids
  • mites
  • small wasps
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16
Q

Webs constructed near terminal ends of branches within which a caterpillar consumes foliage is evidence of:

A

Fall webworm

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17
Q

The number of white grubs per square foot that may cause economic damage:

A

4 to 5

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18
Q

The fall army-worm can be distinguished from other larvae by:

A

a white inverted Y on head

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19
Q

Numerous low-flying moths are generally associated with infestations of:

A

Sod web worms

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20
Q

Broadcast applications of insecticide baits, contact insecticides and individual mound treatment are all acceptable control methods for which of these insect pests?

A

Red Imported Fire Ants

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21
Q

To control black spot of rose, a person should use a:

A

Fungicide

22
Q

Powdery mildew is primarily a problem when the climate is:

A

Cool and dry

23
Q

Plants affected by root knot nematodes grow poorly because roots:

A

Cannot absorb enough water and nutrients.

24
Q

Oak wilt causes what kind of symptoms on leaves of live oak?

A

veinal chlorosis and tip burn

25
Q

A disease that commonly infects photinia and Indian hawthorn is:

A

Entomosporium leaf spot

26
Q

A turf grass disease caused by a virus and commonly confused with iron chlorosis is:

A

St. Augustine decline

27
Q

___ ___ symptoms include rotted leaves easily pulled away from the plant.

A

Brown patch

28
Q

True or False: Bermudagrass smut can be controlled by fungicide applications.

A

False

29
Q

A common turf grass disease resulting in leaf blades with light tan lesions and red borders near the edges of the infected area is:

A

Dollar spot

30
Q

This disease of bermudagrasses is not a problem in newly established lawns but can infect lawns 3 to 4 years old.

A

Spring dead spot

31
Q

Windmillgrass, bermudagrass and dallisgrass are all examples of what type of weeds?

A

Perennial grasses

32
Q

___ is a cool season grass found in athletic fields, golf courses, home lawns and flower beds across the state.

A

Annual bluegrass

33
Q

An annual grass that is commonly a problem in newly seeded turf and heavy traffic areas is:

A

Goosegrass

34
Q

This plant has dark green leaves covered with soft hair and cannot be controlled by mowing.

A

Mouseear chickweed

35
Q

___ is a low-growing, creeping perennial weed that prefers moist soils.

A

Henbit

36
Q

___ is an annual broadleaf weed that emerges in mid-winter with spiny leaves and yellow flowers.

A

Sowthistle

37
Q

These plants have triangular stems and produce tubers.

A

Nutsedge

38
Q

Herbicides that are applied to control weeds before they emerge and begin to grow are ___.

A

Preemergent

39
Q

True or False: Plants that have a waxy cuticle on the leaf surface will absorb herbicide solutions better than plants without this layer.

A

False

40
Q

An example of a grassy weed that is controlled better with a post emergent herbicide is:

A

Dallisgrass

41
Q

Fumigants are different from other chemical formulations because they are ___.

A
  • Solids
  • Liquids
  • Compressed gasses that only work as gasses
42
Q

True or False: Soil fumigants control only pests present at the time of fumigation.

A

True

43
Q

True or False: Soil fumigants have residual control activity.

A

False

44
Q

What time of year is soil fumigation most effective?

A

Fall

45
Q

Which is not a factor in effective soil fumigation?

A

Phytotoxicity

46
Q

Which type of soil has the most adsorption sites?

A

Fine textured clay

47
Q

What is the major reason for fumigation failure?

A

Improper soil preparation

48
Q

At what soil moisture conditions do most soil fumigations occur?

A

50-75 percent field capacity

49
Q

What soil temperature range is best for fumigant volatilization?

A

45 - 80 degrees F

50
Q

What is the consequence of soils that are too wet on fumigation?

A

Inhibit extensive diffusion

Texas Pesticide Applicator (3 decks)

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