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TURF (3B) TURF PEST MANAGEMENT -
TEST YOUR KNOWLEDGE BRAND NEW
ACTUAL EXAM WITH ANSWERS.
1. How can you use herbicides selectively to affect only target
plants? - correct answer -You can be selective with herbicides
by managing application placement and timing. IN addition, you
can choose a product that is contact versus systemic, or one
that has a narrow spectrum (affects only certain types of plants)
versus a broad-spectrum.
2. How may total vegetation control products cause harm when
used near landscapes? - correct answer -They can injure trees
and shrubs if their roots lie under the treated soil, or if the
product moves offsite into their root zone.
3. In general, which is best for control of perennial weeds: a
reemergence or a postemergence herbicide? - correct answer -
Most preemergence herbicides do not control perennial weeds.
Systemic postemergence herbicides are best for control of
perennial broadleaf weeds. Nonselective herbicides can be
used to control perennial grasses.
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4. Describe some cultural control strategies for weed
management in turf. - correct answer -Most weeds will not be
able to invade and compete with thick, healthy, well-
established stands. To produce a healthy stand, chose a
species and variety suited for the site and use. Follow
recommended establishment practices. Once a stand is
establishment practices. Once a stand is established, manage
is correctly. Base your thatch management and watering,
fertilization, and mowing programs on the grass species and/or
variety, the site characteristics, and the site's use(s). Prevent or
treat for insect and disease pests. Manage traffic, if possible.
Overseed thin areas. Seed bare patches. Do not let weeds go
to seed. Long-handled pincer-type weed pullers will remove
some weeds in lawns when soil is moist. Mowing can prevent
some weeds from going to seed.
5. Why do you need to know a weed's life cycle to manage it
effectively? - correct answer -Like most pest organisms, weeds
are more vulnerable to control measures ( including herbicides)
at certain times. Most weeds should be treated when actively
growing. For example, preemergent herbicides must be applied
in late winter or early spring to control summer annuals.
However, they must be applied in late summer or early fall to
control winter annuals.
6. What is the difference between a preemergence herbicide and
a postemergence herbicide? - correct answer -Preemergence
herbicides are applied to soil before weeds germinate. They
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are absorbed by the roots of the germinating plant or by the
emerging shoot as it pushes up through the soil. As a rule,
preemergence herbicides do not affect established plants.
Postemergence herbicides are applied to emerged, growing
weeds. They injure or kill emerged weeds after after being
absorbed.
7. What factors affect the success of preemergence herbicides? -
correct answer -Preemergence herbicides need to be activated
(moved into the top inch or two of soil where weed seeds
germinate) by rainfall or irrigation. You may need to irrigate
after applying certain granular herbicides. Irrigation (or rainfall)
will also ways the chemical off the turf grass and reduce the
chance of blade injury. When using preemergence herbicides,
be sure the application is uniform. If liquid preemergence
herbicides are applied to tall grass and the grass is mowed
soon after, the herbicide may not reach the soil surface in
effective amounts. Removal of clippings may make matters
worse. Soil disruptions such as detaching, raking, or animal
activity can generate gaps where weed seeds can germinate.
8. What is the best way to treat perennial broadleaf weeds? -
correct answer -Generally, systemic postemergence
herbicides.
TURF (3B) TURF PEST MANAGEMENT -
TEST YOUR KNOWLEDGE BRAND NEW
ACTUAL EXAM WITH ANSWERS.
1. How can you use herbicides selectively to affect only target
plants? - correct answer -You can be selective with herbicides
by managing application placement and timing. IN addition, you
can choose a product that is contact versus systemic, or one
that has a narrow spectrum (affects only certain types of plants)
versus a broad-spectrum.
2. How may total vegetation control products cause harm when
used near landscapes? - correct answer -They can injure trees
and shrubs if their roots lie under the treated soil, or if the
product moves offsite into their root zone.
3. In general, which is best for control of perennial weeds: a
reemergence or a postemergence herbicide? - correct answer -
Most preemergence herbicides do not control perennial weeds.
Systemic postemergence herbicides are best for control of
perennial broadleaf weeds. Nonselective herbicides can be
used to control perennial grasses.
, Page | 2
4. Describe some cultural control strategies for weed
management in turf. - correct answer -Most weeds will not be
able to invade and compete with thick, healthy, well-
established stands. To produce a healthy stand, chose a
species and variety suited for the site and use. Follow
recommended establishment practices. Once a stand is
establishment practices. Once a stand is established, manage
is correctly. Base your thatch management and watering,
fertilization, and mowing programs on the grass species and/or
variety, the site characteristics, and the site's use(s). Prevent or
treat for insect and disease pests. Manage traffic, if possible.
Overseed thin areas. Seed bare patches. Do not let weeds go
to seed. Long-handled pincer-type weed pullers will remove
some weeds in lawns when soil is moist. Mowing can prevent
some weeds from going to seed.
5. Why do you need to know a weed's life cycle to manage it
effectively? - correct answer -Like most pest organisms, weeds
are more vulnerable to control measures ( including herbicides)
at certain times. Most weeds should be treated when actively
growing. For example, preemergent herbicides must be applied
in late winter or early spring to control summer annuals.
However, they must be applied in late summer or early fall to
control winter annuals.
6. What is the difference between a preemergence herbicide and
a postemergence herbicide? - correct answer -Preemergence
herbicides are applied to soil before weeds germinate. They
, Page | 3
are absorbed by the roots of the germinating plant or by the
emerging shoot as it pushes up through the soil. As a rule,
preemergence herbicides do not affect established plants.
Postemergence herbicides are applied to emerged, growing
weeds. They injure or kill emerged weeds after after being
absorbed.
7. What factors affect the success of preemergence herbicides? -
correct answer -Preemergence herbicides need to be activated
(moved into the top inch or two of soil where weed seeds
germinate) by rainfall or irrigation. You may need to irrigate
after applying certain granular herbicides. Irrigation (or rainfall)
will also ways the chemical off the turf grass and reduce the
chance of blade injury. When using preemergence herbicides,
be sure the application is uniform. If liquid preemergence
herbicides are applied to tall grass and the grass is mowed
soon after, the herbicide may not reach the soil surface in
effective amounts. Removal of clippings may make matters
worse. Soil disruptions such as detaching, raking, or animal
activity can generate gaps where weed seeds can germinate.
8. What is the best way to treat perennial broadleaf weeds? -
correct answer -Generally, systemic postemergence
herbicides.
