IOWA HERBICIDE RIGHT OF WAY CATEGORY 6 TEST BANK EXAM LATEST UPDATE WITH 250 QUESTIONS AND CORRECT DETAILED SOLUTIONS JUST RELEASED THIS YEAR

Page 1 of 33



IOWA HERBICIDE RIGHT OF WAY CATEGORY 6 TEST
BANK EXAM LATEST UPDATE WITH 250 QUESTIONS
AND CORRECT DETAILED SOLUTIONS JUST
RELEASED THIS YEAR



Question: 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 - CORRECT ANSWER✔✔Both B and C




Question: 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 - CORRECT ANSWER✔✔in early spring when sod has greened



1
SUCCESS!

,Page 2 of 33




Question: 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 - CORRECT ANSWER✔✔They do not damage grasses




Question: 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 - CORRECT ANSWER✔✔Dichlobenil




Question: When is the best time to treat many perennials developing from an established root
system? - CORRECT ANSWER✔✔During early flowering




2
SUCCESS!

,Page 3 of 33


Question: 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 - CORRECT ANSWER✔✔Outside an area
equal to twice the height of the desirable trees




Question: 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 - CORRECT ANSWER✔✔The bark prevents penetration of the herbicide
and reduces effectiveness




Question: 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



3
SUCCESS!

, Page 4 of 33


C. They are highly toxic to wildlife

D. They persist in the soil for several years - CORRECT ANSWER✔✔They can damage desirable
plants at very low rates, making them susceptible to drift damage




Question: 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 - CORRECT ANSWER✔✔Little effect is seen the year of application




Question: 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 - CORRECT ANSWER✔✔Wettable powders




Question: Herbicide spraying can be performed, as a general rule, until wind speed exceeds ___
miles per hour. - CORRECT ANSWER✔✔10




4
SUCCESS!