WGU D220 COMPREHENSIVE TEST BANK
COMPLETE QUESTIONS AND ANSWERS
PRACTICE SOLUTION VERIFIED
◉ What are herbicide kills only part of the plant that it Answer:
Contact herbicide
◉ Weeds are plants that grow 3 or more years Answer: Perennial
◉ Which of the following factors would have the least effect on the
movement of herbicide from the application site? Answer: Type of
soil it is applied to and the type of equipment that is used
◉ What is the time interval that must be observed before animals can
graze on treated site Answer: 2 weeks
◉ Is highly volatile herbicide is one that Answer: Can readily passed
into the vapor phase
◉ When do perennial plants begin to store food in their roots Answer:
Fall
◉ Bushes and shrubs are Answer: Low growing woody plant with
several stems
, ◉ The herbicide that kills only the parts of the plant that it touches is
known as? Answer: Contact herbicide
◉ Which type of herbicide would you use on a highway shoulder
where you need to maintain bare ground? Answer: Non selective
herbicide
◉ When herbicides are combined with oil and applied to lower parts
of stems and exposed roots this method is called? Answer: Basil
steam treatment
◉ Which of the following is a grey powder, insoluble in water, and
releases phosphide gas upon ingestion? Answer: Zinc phosphide
◉ A selective herbicide is one that? Answer: Kill some species of
plants without harming other species
◉ Which area should you not apply a non-selective residual
herbicide? Answer: Parking lot flower beds
◉ What type of herbicide can be combined with non-selective, soil
applied herbicide to improve the control in a weedy area? Answer:
Contact herbicides
◉ At what stage would it be most difficult to control bennial weeds
with herbicide sprays? Answer: Flowering and seed development
COMPLETE QUESTIONS AND ANSWERS
PRACTICE SOLUTION VERIFIED
◉ What are herbicide kills only part of the plant that it Answer:
Contact herbicide
◉ Weeds are plants that grow 3 or more years Answer: Perennial
◉ Which of the following factors would have the least effect on the
movement of herbicide from the application site? Answer: Type of
soil it is applied to and the type of equipment that is used
◉ What is the time interval that must be observed before animals can
graze on treated site Answer: 2 weeks
◉ Is highly volatile herbicide is one that Answer: Can readily passed
into the vapor phase
◉ When do perennial plants begin to store food in their roots Answer:
Fall
◉ Bushes and shrubs are Answer: Low growing woody plant with
several stems
, ◉ The herbicide that kills only the parts of the plant that it touches is
known as? Answer: Contact herbicide
◉ Which type of herbicide would you use on a highway shoulder
where you need to maintain bare ground? Answer: Non selective
herbicide
◉ When herbicides are combined with oil and applied to lower parts
of stems and exposed roots this method is called? Answer: Basil
steam treatment
◉ Which of the following is a grey powder, insoluble in water, and
releases phosphide gas upon ingestion? Answer: Zinc phosphide
◉ A selective herbicide is one that? Answer: Kill some species of
plants without harming other species
◉ Which area should you not apply a non-selective residual
herbicide? Answer: Parking lot flower beds
◉ What type of herbicide can be combined with non-selective, soil
applied herbicide to improve the control in a weedy area? Answer:
Contact herbicides
◉ At what stage would it be most difficult to control bennial weeds
with herbicide sprays? Answer: Flowering and seed development
