___________________________________________________________________
North Dakota Commercial Pesticide
Applicator – Category 6 Right-of-Way
Pest Control — 100-Question Advanced
Practice Exam 2026 | Questions &
Answers with Detailed Rationales |
Complete North Dakota Category 6
Right-of-Way Pest Control Exam Prep &
Study Guide
___________________________________________________________________
1. Which type of pesticide application is most directly associated with North
Dakota Commercial Applicator Category 6?
A. Treatment of agricultural seed
B. Treatment of household insects
C. Treatment of vegetation and pests along rights-of-way
D. Treatment of stored grain
Answer: C. Treatment of vegetation and pests along rights-of-way
Rationale: Category 6 Right-of-Way certification covers pesticide applications in
areas such as roads, powerlines, telecommunications lines, pipelines, railways,
parking lots, and similar rights-of-way.
, 2. Which situation is an example of right-of-way pest control?
A. Treating insects in a residence
B. Treating corn for weeds
C. Controlling weeds beneath a utility transmission line
D. Treating stored wheat for insects
Answer: C. Controlling weeds beneath a utility transmission line
Rationale: Utility corridors and powerline rights-of-way are specifically included
within the right-of-way category.
3. What is the primary purpose of vegetation management along many
roadsides?
A. Eliminate every plant species
B. Increase roadside fertilizer use
C. Maintain safety, visibility, drainage, and infrastructure function
D. Prevent all wildlife activity
Answer: C. Maintain safety, visibility, drainage, and infrastructure function
Rationale: Right-of-way vegetation management is generally directed toward
maintaining safe and functional transportation or utility corridors rather than
eliminating all vegetation.
4. Before applying a pesticide to a right-of-way, what should the applicator
consult first?
A. A previous applicator's records
B. A fertilizer label
C. The pesticide label and applicable supplemental labeling
D. A general internet recommendation
Answer: C. The pesticide label and applicable supplemental labeling
Rationale: The pesticide label establishes the legally permitted use, including
sites, pests, rates, precautions, application methods, and restrictions. North
,Dakota also advises users to consult and follow the label and supplemental
labeling.
5. Which statement best describes pesticide use under FIFRA?
A. Labels are suggestions only
B. Applicators may increase labeled rates when weeds are difficult to control
C. Using a pesticide contrary to its labeling can constitute pesticide misuse
D. Applicators may use any pesticide on any noncrop site
Answer: C. Using a pesticide contrary to its labeling can constitute pesticide
misuse
Rationale: Pesticide labels contain legally enforceable directions and
restrictions. Applicators must use products according to applicable labeling.
6. Which environmental factor is particularly important when spraying a
roadside herbicide?
A. Moon phase
B. Soil color
C. Wind direction and velocity
D. Time since the last mowing only
Answer: C. Wind direction and velocity
Rationale: Wind affects spray movement and drift. North Dakota commercial
and public applicator records include estimated wind direction and velocity for
applications, subject to specified exceptions.
7. What is pesticide drift?
A. Breakdown of pesticide in soil
B. Movement of pesticide only through groundwater
C. Movement of pesticide droplets or vapor away from the intended application
site
D. Absorption of pesticide by roots
, Answer: C. Movement of pesticide droplets or vapor away from the intended
application site
Rationale: Drift occurs when pesticide moves away from the intended target
during or after application, potentially causing off-target exposure or injury.
8. Which condition generally increases the potential for spray drift?
A. Larger droplets and calm conditions
B. Small droplets and unfavorable wind conditions
C. Low boom height and coarse droplets
D. Application according to all label restrictions
Answer: B. Small droplets and unfavorable wind conditions
Rationale: Fine droplets are more easily carried by air currents. Applicators
should use label-approved drift-reduction practices and avoid unsuitable
weather conditions.
9. Why should an applicator avoid spraying during temperature inversions?
A. Pesticides become fertilizer
B. Soil becomes impermeable
C. Stable air can trap fine spray particles and allow them to move considerable
distances
D. Herbicides become completely inactive
Answer: C. Stable air can trap fine spray particles and allow them to move
considerable distances
Rationale: Temperature inversions can create stable atmospheric conditions in
which very small droplets or vapor remain suspended and move laterally rather
than dispersing upward.
10.Which nozzle characteristic generally produces larger spray droplets?
A. Extremely fine atomization
B. A nozzle designed for coarse or very coarse droplets
North Dakota Commercial Pesticide
Applicator – Category 6 Right-of-Way
Pest Control — 100-Question Advanced
Practice Exam 2026 | Questions &
Answers with Detailed Rationales |
Complete North Dakota Category 6
Right-of-Way Pest Control Exam Prep &
Study Guide
___________________________________________________________________
1. Which type of pesticide application is most directly associated with North
Dakota Commercial Applicator Category 6?
A. Treatment of agricultural seed
B. Treatment of household insects
C. Treatment of vegetation and pests along rights-of-way
D. Treatment of stored grain
Answer: C. Treatment of vegetation and pests along rights-of-way
Rationale: Category 6 Right-of-Way certification covers pesticide applications in
areas such as roads, powerlines, telecommunications lines, pipelines, railways,
parking lots, and similar rights-of-way.
, 2. Which situation is an example of right-of-way pest control?
A. Treating insects in a residence
B. Treating corn for weeds
C. Controlling weeds beneath a utility transmission line
D. Treating stored wheat for insects
Answer: C. Controlling weeds beneath a utility transmission line
Rationale: Utility corridors and powerline rights-of-way are specifically included
within the right-of-way category.
3. What is the primary purpose of vegetation management along many
roadsides?
A. Eliminate every plant species
B. Increase roadside fertilizer use
C. Maintain safety, visibility, drainage, and infrastructure function
D. Prevent all wildlife activity
Answer: C. Maintain safety, visibility, drainage, and infrastructure function
Rationale: Right-of-way vegetation management is generally directed toward
maintaining safe and functional transportation or utility corridors rather than
eliminating all vegetation.
4. Before applying a pesticide to a right-of-way, what should the applicator
consult first?
A. A previous applicator's records
B. A fertilizer label
C. The pesticide label and applicable supplemental labeling
D. A general internet recommendation
Answer: C. The pesticide label and applicable supplemental labeling
Rationale: The pesticide label establishes the legally permitted use, including
sites, pests, rates, precautions, application methods, and restrictions. North
,Dakota also advises users to consult and follow the label and supplemental
labeling.
5. Which statement best describes pesticide use under FIFRA?
A. Labels are suggestions only
B. Applicators may increase labeled rates when weeds are difficult to control
C. Using a pesticide contrary to its labeling can constitute pesticide misuse
D. Applicators may use any pesticide on any noncrop site
Answer: C. Using a pesticide contrary to its labeling can constitute pesticide
misuse
Rationale: Pesticide labels contain legally enforceable directions and
restrictions. Applicators must use products according to applicable labeling.
6. Which environmental factor is particularly important when spraying a
roadside herbicide?
A. Moon phase
B. Soil color
C. Wind direction and velocity
D. Time since the last mowing only
Answer: C. Wind direction and velocity
Rationale: Wind affects spray movement and drift. North Dakota commercial
and public applicator records include estimated wind direction and velocity for
applications, subject to specified exceptions.
7. What is pesticide drift?
A. Breakdown of pesticide in soil
B. Movement of pesticide only through groundwater
C. Movement of pesticide droplets or vapor away from the intended application
site
D. Absorption of pesticide by roots
, Answer: C. Movement of pesticide droplets or vapor away from the intended
application site
Rationale: Drift occurs when pesticide moves away from the intended target
during or after application, potentially causing off-target exposure or injury.
8. Which condition generally increases the potential for spray drift?
A. Larger droplets and calm conditions
B. Small droplets and unfavorable wind conditions
C. Low boom height and coarse droplets
D. Application according to all label restrictions
Answer: B. Small droplets and unfavorable wind conditions
Rationale: Fine droplets are more easily carried by air currents. Applicators
should use label-approved drift-reduction practices and avoid unsuitable
weather conditions.
9. Why should an applicator avoid spraying during temperature inversions?
A. Pesticides become fertilizer
B. Soil becomes impermeable
C. Stable air can trap fine spray particles and allow them to move considerable
distances
D. Herbicides become completely inactive
Answer: C. Stable air can trap fine spray particles and allow them to move
considerable distances
Rationale: Temperature inversions can create stable atmospheric conditions in
which very small droplets or vapor remain suspended and move laterally rather
than dispersing upward.
10.Which nozzle characteristic generally produces larger spray droplets?
A. Extremely fine atomization
B. A nozzle designed for coarse or very coarse droplets
