CA QAL CATEGORY C: RIGHT-OF-WAY
PEST CONTROL ADDITIONAL REVIEW
ACTUAL EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS
How often is a railway treated to maintain the ballast and berm free of
vegetation? - ✔✔✔ Correct Answer > Annually
Total control of vegetation around railways serves to: - ✔✔✔ Correct Answer
> Avoid fires, prevent accidents, protect railway infrastructure and
provide good visibility
Vegetation in the right-of-way beyond the berm generally... - ✔✔✔
Correct Answer > Does not require total control but may still need to be
managed (ex: overhanging trees)
Page 1 of 12
, What distance does CAL FIRE and the US Forest Service like to keep
vegetation-free by railways? - ✔✔✔ Correct Answer > 25 feet
Biological control methods for pests can include: - ✔✔✔ Correct Answer >
livestock grazing, competition pressure from desirable plants (to exclude
less-desirable plants), use of weed-specific insects, and preservation of
natural enemies
What is the most commonly used pesticide in rights-of-way? -
✔✔✔ Correct Answer > Herbicides
What is integrated vegetation management? - ✔✔✔ Correct Answer > The use
of herbicides with other control methods to provide better overall control
What types of vegetation are favored under utility lines? - ✔✔✔
Correct Answer > Perennial grasses, forbs, and low-growing woody
vegetation
Page 2 of 12
PEST CONTROL ADDITIONAL REVIEW
ACTUAL EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS
How often is a railway treated to maintain the ballast and berm free of
vegetation? - ✔✔✔ Correct Answer > Annually
Total control of vegetation around railways serves to: - ✔✔✔ Correct Answer
> Avoid fires, prevent accidents, protect railway infrastructure and
provide good visibility
Vegetation in the right-of-way beyond the berm generally... - ✔✔✔
Correct Answer > Does not require total control but may still need to be
managed (ex: overhanging trees)
Page 1 of 12
, What distance does CAL FIRE and the US Forest Service like to keep
vegetation-free by railways? - ✔✔✔ Correct Answer > 25 feet
Biological control methods for pests can include: - ✔✔✔ Correct Answer >
livestock grazing, competition pressure from desirable plants (to exclude
less-desirable plants), use of weed-specific insects, and preservation of
natural enemies
What is the most commonly used pesticide in rights-of-way? -
✔✔✔ Correct Answer > Herbicides
What is integrated vegetation management? - ✔✔✔ Correct Answer > The use
of herbicides with other control methods to provide better overall control
What types of vegetation are favored under utility lines? - ✔✔✔
Correct Answer > Perennial grasses, forbs, and low-growing woody
vegetation
Page 2 of 12
