Control
Devrinol 50-DF ornamental can be used by homeowners on container-grown
ornamentals, ground covers, and turfgrass - CORRECT ANSWER-True
Plant diseases are often difficult to detect and diagnose due to: - CORRECT ANSWER-
There may be several causes for a particular symptom
The best guide for safe use of a pesticide on a specific plant is: - CORRECT ANSWER-
The pesticide label
What is the signal word on Devrinol 50-DF ornamental? - CORRECT ANSWER-Caution
If a commercial pesticide applicator does not keep records of products applied, they
may be fined up to ______ for pest control operators and up to _______ for all other
commercial applicators. - CORRECT ANSWER-$1,000 , $500
Which of the following is least likely to reduce incidence of root rot diseases in the
interiorscape? - CORRECT ANSWER-Removing dead and dying foliage
You can maintain your certification by retesting or earning points - CORRECT
ANSWER-True
To reduce wear, which of the following should nozzle tips not be made? - CORRECT
ANSWER-B & C (brass or plastic, aluminum or stainless steel)
If a label calls for 8 pints of concentrate to be mixed with 400 gallons of water, how
many gallons of water would be mixed with 6 pints of concentrate? - CORRECT
ANSWER-300 gallons
What type of pesticide is Devrinol 50-DF ornamental? - CORRECT ANSWER-Herbicide
How frequently should personal clothing worn as PPE be laundered? - CORRECT
ANSWER-At the end of each day
Split applications of Devrinal 50-DF ornamental should be made 8-10 weeks apart to
given longer & better weed control of crabgrass & goosegrass. - CORRECT ANSWER-
True
,If you know that it takes 4.8 oz of concentrate to make a 2.0% dilution, how many oz of
concentrate would you use to make a 0.5% dilution? - CORRECT ANSWER-1.2 oz
If a product label is destroyed or damaged, the container does not have to be marked
with which of the following? - CORRECT ANSWER-% of inert ingredient
Remove PPE immediately after handling Devrinol 50-DF ornamental & then remove
gloves and wash - CORRECT ANSWER-False
Do not make more than one application per season of Devrinol 50-DF ornamental for
annual weeds in field grown bulbs - CORRECT ANSWER-True
Inhalation exposure can occur at just certain points in the application process -
CORRECT ANSWER-False
Phytotoxicity - CORRECT ANSWER-Is undesirable injury to plants
Which of the following statements is not true? - CORRECT ANSWER-Buy only the
amount of pesticide you need for no more than two seasons
The most important characteristics of visual repellant for pest birds is that it should: -
CORRECT ANSWER-Be easily visible & should have movement such as foil strips that
move in the wind
Who administers the Federal Insecticide Fungicide and Rodenticide Act? - CORRECT
ANSWER-EPA
Do not apply Devrinol 50-DF to frozen ground - CORRECT ANSWER-True
Pre-emergent herbicides are applied to the foliage surface of emerged weeds -
CORRECT ANSWER-False
If pesticide label directions on reentry intervals can't be followed: - CORRECT
ANSWER-Do not apply the pesticide
Private applicators are typically owners or employees of which of the following? -
CORRECT ANSWER-All of the above (farm, forest, nursery and greenhouse)
Do not apply Devrinol 50-DF ornamental to tulips showing more than 2 in of top growth -
CORRECT ANSWER-True
Which fencing provides the best protection against deer damage? - CORRECT
ANSWER-Permanent, 8-ft high woven wire fencing
With high-exposure applications using mist blowers, aerosols, fog generators, or high
pressure sprayers, which of the following should not be worn? - CORRECT ANSWER-
, Tightly woven cotton long sleeved shirt, pants, hood, and gloves sprayed with
scotchguard
If you have a recommendation of 2 oz of a given chemical for 1000 sq ft how much
chemical will you need for 4590 sq ft? - CORRECT ANSWER-9.18 oz
Plant galls associated with insects and mites are caused - CORRECT ANSWER-(ALL
OF THE ABOVE) During feeding, egglaying, and egg laying when a chemical is injected
into the plant by the pest
Devrinol 50-DF ornamental can be applied through any type of irrigation system -
CORRECT ANSWER-False
Aphid-like insects which attack only conifers are: - CORRECT ANSWER-Adelgids
When comparing toxicities of pesticides and classifying pesticide toxicity, scientists and
EPA use which of the following measurements? - CORRECT ANSWER-LD50 & LC50
Groundwater advisory statements: - CORRECT ANSWER-Indicate that a pesticide may
not be safe to use under certain circumstances
Fall through spring application of Devrinol 50-DF ornamental are preferred for highway
and industrial ornamental planting if irrigation is not available - CORRECT ANSWER-
True
During a wet spring in a Zoyzia grass lawn you notice small (2 in. diameter), straw-
colored patches which are enlarging & growing together in some areas. The disease is
probably: - CORRECT ANSWER-Dollar Spot
If a label calls for 8 pints of concentrate to be mixed with 400 gallons of water, how
many gallons of water would be mixed with 6 pints of concentrate? - CORRECT
ANSWER-300 gallons
Which of the following doesn't describe cutworms? - CORRECT ANSWER-They have
characteristic striped patterns running the length of their bodies
What must you have displayed on each side of your pesticide service vehicle? -
CORRECT ANSWER-Charter number -- Tank capacity
The pesticide certification program assures that the pesticide applicator has knowledge
of which of the following? - CORRECT ANSWER-A & C (the pest problem &
environmental & health concerns)
Which of the following is a false statement about containment pads? - CORRECT
ANSWER-Should be made of unwelded steel