Ornamental and Turf Plant Pest Control

Question 1

Failure to correctly identify a pest can lead to:

Answer 1

• Wrongful application of pesticide
• Environmental damage
• injury to desirable plants

Question 2

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

Answer 2

Natural Factors

Question 3

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

Answer 3

Cultural practices

Question 4

Before establishing a turf or ornamental landscape you should consider:

Answer 4

• cost
• water requirements
• shade tolerance

Question 5

There are ___ elements required by plants to grow well.

Answer 5

sixteen

Question 6

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

Answer 6

groundwater

Question 7

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

Answer 7

Drift

Question 8

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

Answer 8

• Temperature
• Moisture
• Sunlight

Question 9

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

Answer 9

surfactants

Question 10

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

Answer 10

Stickers

Question 11

Most insecticides used for aphid control include:

Answer 11

contact or systemic

Question 12

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

Answer 12

orange

Question 13

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

Answer 13

Hot and Dry

Question 14

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

Answer 14

30 days

Question 15

Plant galls can be a result of feeding by:

Answer 15

• aphids
• mites
• small wasps

Question 16

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

Answer 16

Fall webworm

Question 17

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

Answer 17

4 to 5

Question 18

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

Answer 18

a white inverted Y on head

Question 19

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

Answer 19

Sod web worms

Question 20

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

Answer 20

Red Imported Fire Ants

Question 21

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

Answer 21

Fungicide

Question 22

Powdery mildew is primarily a problem when the climate is:

Answer 22

Cool and dry

Question 23

Plants affected by root knot nematodes grow poorly because roots:

Answer 23

Cannot absorb enough water and nutrients.

Question 24

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

Answer 24

veinal chlorosis and tip burn

Question 25

A disease that commonly infects photinia and Indian hawthorn is:

Answer 25

Entomosporium leaf spot

Question 26

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

Answer 26

St. Augustine decline

Question 27

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

Answer 27

Brown patch

Question 28

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

Answer 28

False

Question 29

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

Answer 29

Dollar spot

Question 30

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

Answer 30

Spring dead spot

Question 31

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

Answer 31

Perennial grasses

Question 32

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

Answer 32

Annual bluegrass

Question 33

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

Answer 33

Goosegrass

Question 34

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

Answer 34

Mouseear chickweed

Question 35

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

Answer 35

Henbit

Question 36

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

Answer 36

Sowthistle

Question 37

These plants have triangular stems and produce tubers.

Answer 37

Nutsedge

Question 38

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

Answer 38

Preemergent

Question 39

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

Answer 39

False

Question 40

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

Answer 40

Dallisgrass

Question 41

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

Answer 41

- Solids - Liquids - Compressed gasses that only work as gasses

Question 42

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

Answer 42

True

Question 43

True or False: Soil fumigants have residual control activity.

Answer 43

False

Question 44

What time of year is soil fumigation most effective?

Answer 44

Fall

Question 45

Which is not a factor in effective soil fumigation?

Answer 45

Phytotoxicity

Question 46

Which type of soil has the most adsorption sites?

Answer 46

Fine textured clay

Question 47

What is the major reason for fumigation failure?

Answer 47

Improper soil preparation

Question 48

At what soil moisture conditions do most soil fumigations occur?

Answer 48

50-75 percent field capacity

Question 49

What soil temperature range is best for fumigant volatilization?

Answer 49

45 - 80 degrees F

Question 50

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

Answer 50

Inhibit extensive diffusion