Iowa Herbicide Right of Way -
Category 6 | Actual Test Questions
and Verified Answers| Latest
Update
in early spring when sod has greened < answer Growth regulator application is
most effective when applied:
A. in early spring when sod has greened
B. in late spring when sod has grown at least 2"
C. after 3 times mowing
D. in fall just prior to leaf fall
Both B and C < answer Which procedures will help reduce herbicide drift?
A. Increasing spray pressure
B. Reducing spray pressure
C. Hanging nozzles to a type which emits larger droplets
D. Reducing height of boom
E. Both B and C
They do not damage grasses < answer Phenoxy herbicides are widely used along
roadsides because:
A. They are effective on a wide variety of broadleaf and woody species
B. They rarely damage plants in adjacent areas
,C. They are high in human toxicity
D. They do not damage grasses
E. Both A and D
Dichlobenil < answer Which of the following nonselective herbicides has the
longest period of control, when used at a given site:
A. Bromacil
B. Dichlobenil
C. Prometon
D. Tebuthiuron
During early flowering < answer When is the best time to treat many perennials
developing from an established root system?
Outside an area equal to twice the height of the desirable trees < answer In order
to avoid injury to nearby desirable trees; persistent, nonselective herbicides such
as Hyvar should be applied:
A. Only in the fall
B. Outside the drip line of the desirable trees
C. At least 10 feet from the desirable trees
D. Outside an area equal to twice the height of the desirable trees
E. A minimum of 1/2 mile from the desirable trees
The bark prevents penetration of the herbicide and reduces effectiveness <
answer Basal bark treatment is not recommended for wood species larger than 6"
in diameter because:
, A. The bark prevents penetration of the herbicide and reduces effectiveness
B. The cost is prohibitive
C. There is a high risk of drift
D. None of the above
They can damage desirable plants at very low rates, making them susceptible to
drift damage < answer A major disadvantage of the phenoxy-herbicides is:
A. They are non-selective herbicides
B. They can damage desirable plants at very low rates, making them susceptible to
drift damage
C. They are highly toxic to wildlife
D. They persist in the soil for several years
Little effect is seen the year of application < answer Krenite is different from most
brush herbicides because:
A. It can be applied either to the foliage or the soil
B. Little effect is seen the year of application
C. Both A and B
D. None of the above
Wettable powders < answer Which of the following formulations do not dissolve
in water?
A. Wettable powders
B. Soluble powders
C. Emulsifiable concentrate
D. All of the above dissolve in water
Category 6 | Actual Test Questions
and Verified Answers| Latest
Update
in early spring when sod has greened < answer Growth regulator application is
most effective when applied:
A. in early spring when sod has greened
B. in late spring when sod has grown at least 2"
C. after 3 times mowing
D. in fall just prior to leaf fall
Both B and C < answer Which procedures will help reduce herbicide drift?
A. Increasing spray pressure
B. Reducing spray pressure
C. Hanging nozzles to a type which emits larger droplets
D. Reducing height of boom
E. Both B and C
They do not damage grasses < answer Phenoxy herbicides are widely used along
roadsides because:
A. They are effective on a wide variety of broadleaf and woody species
B. They rarely damage plants in adjacent areas
,C. They are high in human toxicity
D. They do not damage grasses
E. Both A and D
Dichlobenil < answer Which of the following nonselective herbicides has the
longest period of control, when used at a given site:
A. Bromacil
B. Dichlobenil
C. Prometon
D. Tebuthiuron
During early flowering < answer When is the best time to treat many perennials
developing from an established root system?
Outside an area equal to twice the height of the desirable trees < answer In order
to avoid injury to nearby desirable trees; persistent, nonselective herbicides such
as Hyvar should be applied:
A. Only in the fall
B. Outside the drip line of the desirable trees
C. At least 10 feet from the desirable trees
D. Outside an area equal to twice the height of the desirable trees
E. A minimum of 1/2 mile from the desirable trees
The bark prevents penetration of the herbicide and reduces effectiveness <
answer Basal bark treatment is not recommended for wood species larger than 6"
in diameter because:
, A. The bark prevents penetration of the herbicide and reduces effectiveness
B. The cost is prohibitive
C. There is a high risk of drift
D. None of the above
They can damage desirable plants at very low rates, making them susceptible to
drift damage < answer A major disadvantage of the phenoxy-herbicides is:
A. They are non-selective herbicides
B. They can damage desirable plants at very low rates, making them susceptible to
drift damage
C. They are highly toxic to wildlife
D. They persist in the soil for several years
Little effect is seen the year of application < answer Krenite is different from most
brush herbicides because:
A. It can be applied either to the foliage or the soil
B. Little effect is seen the year of application
C. Both A and B
D. None of the above
Wettable powders < answer Which of the following formulations do not dissolve
in water?
A. Wettable powders
B. Soluble powders
C. Emulsifiable concentrate
D. All of the above dissolve in water
