ORNAMENTAL/TURF LATEST
PESTICIDE
APPLICATOR'S
LICENCE EXAM
STUDY GUIDE
What are some application errors when putting out chemicals? -
ANSWERS-1.) When the application rate is too low, weeds may be
injured but continue to grow
2.) When the rate is too high, the chemical can kill the leaves before it
can be translocated through the plant
3.) Applying a herbicide at a higher-than-recommended rate also
increases the chances of herbicide injury to the turf grass or leaching
into the soil to non target plants (such as tree roots) and to groundwater
What is a Selective herbicide? - ANSWERS-Herbicide that controls
certain plant species without adversely affecting the growth of a
different plant species
What is a Non-Selective herbicide? - ANSWERS-Herbicide that kills all
plants, weeds, as well as desirables
END OF
PAGE
1
, ORNAMENTAL/TURF LATEST
PESTICIDE
APPLICATOR'S
LICENCE EXAM
STUDY GUIDE
What is Plant Susceptibility? - ANSWERS-Killing or injuring of a plant
by a herbicide
What is Plant tolerance? - ANSWERS-The natural ability of a plant to
remain unaffected by a herbicide
What is Resistance? - ANSWERS-The effect of weed becoming more
tolerant of a herbicide as a result of it being used over and over again on
the same site
What are Pre-emergence herbicides? - ANSWERS-Herbicides that are
applied to existing turf grass areas before weed seed germination to
control susceptible weeds during the very early stage of germination
What are Post-emergence herbicides? - ANSWERS-Herbicides that are
applied after weeds are present
END OF
PAGE
2
, ORNAMENTAL/TURF LATEST
PESTICIDE
APPLICATOR'S
LICENCE EXAM
STUDY GUIDE
What are Contact herbicides? - ANSWERS-Herbicides that kill or injure
only the part of the plant that is touched by the spray
What are Systemic herbicides? - ANSWERS-Herbicides that are
absorbed by the leaves or roots and circulate within the plant to kill it
(also called translocation)
What is Germination? - ANSWERS-The process by which a plant grows
from a seed
What is a Rhizome? - ANSWERS-Creeping, horizontal underground
stem, producing shoots above ground and roots below
What is a Tuber? - ANSWERS-Thickened storage portion of a rhizome
or stolon
END OF
PAGE
3
, ORNAMENTAL/TURF LATEST
PESTICIDE
APPLICATOR'S
LICENCE EXAM
STUDY GUIDE
What is a Stolon? - ANSWERS-Creeping, above ground stem that roots
at the nodes
What does Volatilization mean? - ANSWERS-A change from liquid to
vapor of the chemical formulation that you are using
What are 10 reasons to control weeds? - ANSWERS-1.) Weeds compete
with turf grass for light, moisture, and nutrients
2.) Weeds decrease the economic value of landscapes
3.) Weeds damage the appearance of lawns, parks, playing fields, and
recreational turfs
4.) Weeds make athletic and recreational turfs slippery and increase the
chance of injury to players
5.) Weeds produce large quantities of seeds
6.) Weeds produce pollen that can cause allergic reactions
7.) Weeds become a fire hazard along roads and near buildings when the
top growth dries
END OF
PAGE
4
PESTICIDE
APPLICATOR'S
LICENCE EXAM
STUDY GUIDE
What are some application errors when putting out chemicals? -
ANSWERS-1.) When the application rate is too low, weeds may be
injured but continue to grow
2.) When the rate is too high, the chemical can kill the leaves before it
can be translocated through the plant
3.) Applying a herbicide at a higher-than-recommended rate also
increases the chances of herbicide injury to the turf grass or leaching
into the soil to non target plants (such as tree roots) and to groundwater
What is a Selective herbicide? - ANSWERS-Herbicide that controls
certain plant species without adversely affecting the growth of a
different plant species
What is a Non-Selective herbicide? - ANSWERS-Herbicide that kills all
plants, weeds, as well as desirables
END OF
PAGE
1
, ORNAMENTAL/TURF LATEST
PESTICIDE
APPLICATOR'S
LICENCE EXAM
STUDY GUIDE
What is Plant Susceptibility? - ANSWERS-Killing or injuring of a plant
by a herbicide
What is Plant tolerance? - ANSWERS-The natural ability of a plant to
remain unaffected by a herbicide
What is Resistance? - ANSWERS-The effect of weed becoming more
tolerant of a herbicide as a result of it being used over and over again on
the same site
What are Pre-emergence herbicides? - ANSWERS-Herbicides that are
applied to existing turf grass areas before weed seed germination to
control susceptible weeds during the very early stage of germination
What are Post-emergence herbicides? - ANSWERS-Herbicides that are
applied after weeds are present
END OF
PAGE
2
, ORNAMENTAL/TURF LATEST
PESTICIDE
APPLICATOR'S
LICENCE EXAM
STUDY GUIDE
What are Contact herbicides? - ANSWERS-Herbicides that kill or injure
only the part of the plant that is touched by the spray
What are Systemic herbicides? - ANSWERS-Herbicides that are
absorbed by the leaves or roots and circulate within the plant to kill it
(also called translocation)
What is Germination? - ANSWERS-The process by which a plant grows
from a seed
What is a Rhizome? - ANSWERS-Creeping, horizontal underground
stem, producing shoots above ground and roots below
What is a Tuber? - ANSWERS-Thickened storage portion of a rhizome
or stolon
END OF
PAGE
3
, ORNAMENTAL/TURF LATEST
PESTICIDE
APPLICATOR'S
LICENCE EXAM
STUDY GUIDE
What is a Stolon? - ANSWERS-Creeping, above ground stem that roots
at the nodes
What does Volatilization mean? - ANSWERS-A change from liquid to
vapor of the chemical formulation that you are using
What are 10 reasons to control weeds? - ANSWERS-1.) Weeds compete
with turf grass for light, moisture, and nutrients
2.) Weeds decrease the economic value of landscapes
3.) Weeds damage the appearance of lawns, parks, playing fields, and
recreational turfs
4.) Weeds make athletic and recreational turfs slippery and increase the
chance of injury to players
5.) Weeds produce large quantities of seeds
6.) Weeds produce pollen that can cause allergic reactions
7.) Weeds become a fire hazard along roads and near buildings when the
top growth dries
END OF
PAGE
4
