RIGHT-OF-WAY PESTICIDE EXAM | 2026 UPDATE | QUESTIONS AND ANSWERS | WITH
COMPLETE SOLUTION
Root-absorbed herbicides are more effective when applied postemergence. T or F - (answer)False
Define contact herbicide - (answer)kills where it directly contacts. Controls annual and biennial
Define systemic herbicide - (answer)used for perennial weeds. Moves throughout the plant
Temperature, moisture, soil-type and rate of application influence the persistence of a herbicide. T or F -
(answer)True
What is temperature inversion and how can it affect pesticide drift? - (answer)Temp inversion is when
ground air is 2-5 deg cooler than air above it. It increases drift deposits
What is the difference between a selective and non-selective herbicide - (answer)selective doesn't kill
surround veg. non-selective removes most veg
If a plant's growing points are below the soil surface, which type of herbicide will provide better control:
contact or systemic? - (answer)systemic
How can leaf shape affect herbicidal action - (answer)herbicides will runoff narrow and upright leaves.
Broad leaves hold herbicide longer
What climatic factors affect herbicides - (answer)humidity, light, precipitation, wind, temp, length of
growing season
what are the five categories of selective herbicide applications - (answer)foliage spraying, basal spraying,
granular/pellet, spotgun/exact dose, cut surface herbicide
What are the 3 basic foliage spray treatments used in right-of-ways. - (answer)low volume ground
foliage, high ground foliage, aerial
, RIGHT-OF-WAY PESTICIDE EXAM | 2026 UPDATE | QUESTIONS AND ANSWERS | WITH
COMPLETE SOLUTION
What are the differences between low volume ground foliage and high volume ground foliage
treatments? - (answer)High volume has a specific concentration that is applied instead of rate per acre.
Foliage is prayed to a point where additional spray begins to drip of treated leaves. Larger volumes of
mix. Amount applied will very a lot
What steps can you take to avoid drift and accidental spraying of non-target plants when using high
volume ground foliage treatments - (answer)avoid spray pattern being too high/far, use low pressure,
avoid unfavorable weather, spray parallel to edge of right-of-way
What is the difference between conventional basal spraying and low volume basal spraying -
(answer)low volume uses a more concentrated herbicide mix
In low volume basal spraying stems are completely encircled and wet to rundown. T or F - (answer)False
What are the advantages and disadvantages of granular and pellet applications - (answer)Advantage:
faster application time, more uniform results.
Disadvantage: damage to non-target veg
what are "spotgun" applications? - (answer)hand held or backpack sprayer that delivers a pre-measured
dose of concentrated herbicide to the base of target vegetation.
Granular application is hand operated in sparse populations. T or F - (answer)True
"stump spraying" and "hack and squirt" are names for cut surface herbicide treatments. T or F -
(answer)False
What are the most common mistakes made by applicators using cut surface herbicide treatments? -
(answer)applying too much, making improper frilling/girdling cuts, applying too close to wanted veg.
Non-selective chemicals must have moisture to enter plant root systems. T or F - (answer)True
COMPLETE SOLUTION
Root-absorbed herbicides are more effective when applied postemergence. T or F - (answer)False
Define contact herbicide - (answer)kills where it directly contacts. Controls annual and biennial
Define systemic herbicide - (answer)used for perennial weeds. Moves throughout the plant
Temperature, moisture, soil-type and rate of application influence the persistence of a herbicide. T or F -
(answer)True
What is temperature inversion and how can it affect pesticide drift? - (answer)Temp inversion is when
ground air is 2-5 deg cooler than air above it. It increases drift deposits
What is the difference between a selective and non-selective herbicide - (answer)selective doesn't kill
surround veg. non-selective removes most veg
If a plant's growing points are below the soil surface, which type of herbicide will provide better control:
contact or systemic? - (answer)systemic
How can leaf shape affect herbicidal action - (answer)herbicides will runoff narrow and upright leaves.
Broad leaves hold herbicide longer
What climatic factors affect herbicides - (answer)humidity, light, precipitation, wind, temp, length of
growing season
what are the five categories of selective herbicide applications - (answer)foliage spraying, basal spraying,
granular/pellet, spotgun/exact dose, cut surface herbicide
What are the 3 basic foliage spray treatments used in right-of-ways. - (answer)low volume ground
foliage, high ground foliage, aerial
, RIGHT-OF-WAY PESTICIDE EXAM | 2026 UPDATE | QUESTIONS AND ANSWERS | WITH
COMPLETE SOLUTION
What are the differences between low volume ground foliage and high volume ground foliage
treatments? - (answer)High volume has a specific concentration that is applied instead of rate per acre.
Foliage is prayed to a point where additional spray begins to drip of treated leaves. Larger volumes of
mix. Amount applied will very a lot
What steps can you take to avoid drift and accidental spraying of non-target plants when using high
volume ground foliage treatments - (answer)avoid spray pattern being too high/far, use low pressure,
avoid unfavorable weather, spray parallel to edge of right-of-way
What is the difference between conventional basal spraying and low volume basal spraying -
(answer)low volume uses a more concentrated herbicide mix
In low volume basal spraying stems are completely encircled and wet to rundown. T or F - (answer)False
What are the advantages and disadvantages of granular and pellet applications - (answer)Advantage:
faster application time, more uniform results.
Disadvantage: damage to non-target veg
what are "spotgun" applications? - (answer)hand held or backpack sprayer that delivers a pre-measured
dose of concentrated herbicide to the base of target vegetation.
Granular application is hand operated in sparse populations. T or F - (answer)True
"stump spraying" and "hack and squirt" are names for cut surface herbicide treatments. T or F -
(answer)False
What are the most common mistakes made by applicators using cut surface herbicide treatments? -
(answer)applying too much, making improper frilling/girdling cuts, applying too close to wanted veg.
Non-selective chemicals must have moisture to enter plant root systems. T or F - (answer)True
