Iowa Category 6 Right of Way Pest Management Category 6
Test questions and answers 2026\2027 A+ Grade
Growth regulator application is most effective when applied
- correct answer In early spring when sod has greened
Which procedures will help reduce herbicide drift?
- correct answer Both B and C
When is the best time to treat many perennials developing from an established root system?
- correct answer During early flowering
In order to avoid injury to nearby desirable trees; persistent, nonselective herbicides such as Hyvar
should be applied
- correct answer Outside an area equal to twice the height of the desirable trees
Basal bark treatment is not recommended for wood species larger than 6" in diameter because
- correct answer The bark prevents penetration of the herbicide and reduces effectiveness
A major disadvantage of the phenoxy-herbicides is
- correct answer They can damage desirable plants at very low rates, making them susceptible to drift
damage
The downward movement of pesticides in the soil is called?
- correct answer Leaching
Which type of weed is best controlled in early bloom?
- correct answer Perennial
Test questions and answers 2026\2027 A+ Grade
Growth regulator application is most effective when applied
- correct answer In early spring when sod has greened
Which procedures will help reduce herbicide drift?
- correct answer Both B and C
When is the best time to treat many perennials developing from an established root system?
- correct answer During early flowering
In order to avoid injury to nearby desirable trees; persistent, nonselective herbicides such as Hyvar
should be applied
- correct answer Outside an area equal to twice the height of the desirable trees
Basal bark treatment is not recommended for wood species larger than 6" in diameter because
- correct answer The bark prevents penetration of the herbicide and reduces effectiveness
A major disadvantage of the phenoxy-herbicides is
- correct answer They can damage desirable plants at very low rates, making them susceptible to drift
damage
The downward movement of pesticides in the soil is called?
- correct answer Leaching
Which type of weed is best controlled in early bloom?
- correct answer Perennial
