APPLICATOR TEST COMMERCIAL
CATEGORY 6.0 REAL EXAM
QUESTIONS WITH CORRECT
DETAILED ANSWERS || ALREADY
GRADED A+ < LATEST VERSION >
1. What determines whether a given plant is a weed? - ANSWER 🗸 A weed is
any unwanted plant
2. What are the two main goals of weed management? - ANSWER 🗸 The
primary goal is to minimize weed competition and the other main goal is to
limit the weed's reproduction in order to manage the weed population in
years to come.
3. How do you keep soil herbicides from moving off target? - ANSWER 🗸 Do
not apply herbicides to areas where they may leach into groundwater, or run
off into water sources or cropping areas. Also avoid applying herbicides to
areas where desired tree and shrub roots may extend and DO NOT apply
herbicides to frozen soils.
,4. How and when should you apply soil herbicides? - ANSWER 🗸 Soil
treatments are commonly used when a site requires residual non-selective
control, such as electric transformer stations, rail ballasts and signpost bases.
They can be applied any time that the soil is not frozen, and some soil
applied herbicides need to be transported by rain to be absorbed by the plant.
5. When are foliar sprays appropriate and not appropriate? - ANSWER 🗸
Foliar sprays are not recommended for large brush because of the potential
for drift. Foliar sprays should be operated from the ground close to the plant
and can either be applied through broadcast or spot application.
6. What are the factors in timing a foliar spray? - ANSWER 🗸 Foliar
treatments can be made from the time the leaves are fully expanded until
they begin to turn color in the fall, but are most effective when applied to
fully developed foliage of an actively growing plant. They should be applied
at a temperature between 60 and 80 degrees F, and should have adequate
time to soak into to plant, thus applying right before it rains is ineffective.
7. How are adjuvants used most effectively? - ANSWER 🗸 Adjuvants may be
necessary to use for better absorption by foliage that is extremely waxy or
hairy.
8. What are the similarities and differences between foliar, cut-surface, and
basal bark applications? - ANSWER 🗸 Foliar applications are put directly
onto the foliage of a growing plant. Basal bark applications are used to
control shrubs, canes and thickets or trees up to 5 inches in diameter and are
applied to the lower 18 inches of the stems. Cut-surface treatments are used
to control plants with thick bark or when they have trunks larger than 5
inches in diameter at the base.
,9. Define and explain "pesticide". - ANSWER 🗸 A pesticide is any substance
used to directly control pest populations or to prevent or reduce pest damage.
Pesticides can range from anything such as an insecticide to a herbicide to a
fungicide.
10.What is the difference between organic and inorganic? - ANSWER 🗸
Organic means the compound contains the element carbon, it does not mean
it is natural. Inorganic means that the it is derived from minerals that occur
in nature.
11.Distinguish grasses from broadleaf plants and herbaceous from woody plants
- ANSWER 🗸 Grasses are considered monocots, meaning they have a single
seed leaf, they also have narrow leaves with parallel veins and a fibrous root
system. Broadleaf plants have two seed leaves and are therefore called
dicots, they have broad leaves with veins that form a net patterns. Broadleaf
plants can be further classified into herbaceous and woody, where the woody
plants have a thick layer of dense tissue called bark, which herbaceous plants
lack.
12.Describe the life cycles and propagation of annual, biennial, and perennial
plants - ANSWER 🗸 Annual plants live for less than a year, they produce
many seeds in one growing season, and then die. Summer annuals winter as
seeds, and winter annuals winter as a low-growing plant, both summer and
winter annuals are easiest to control when they are small. Biennial plants
live for two growing seasons, they germinate from seed in the spring or
summer and winter as a rosette of leaves. They flower in their second year,
produce seeds and then die. Both annuals and biennials reproduce only by
seed. Perennial plants live for at least 2 years and sometimes longer, they
may reproduce by seed or vegetatively through several different
mechanisms.
13.What is needed to kill annual, biennial, and perennial weeds and when is it
easiest to do so? - ANSWER 🗸 To kill annuals or biennials, you must kill
, the whole shoot. Controlling these weeds with tillage or herbicides will kill
them plus stop seed production, which will reduce future weed problems.
The most effective way to kill perennials is to destroy the underground
vegetative structures by either repeatedly tilling the soil or by using a
herbicide that translocates to destroy all of the plant parts.
14.How should you time herbicide application with respect to a plant's life
cycle and which timing is most effective? - ANSWER 🗸 All weeds may
start as seedlings and it is most effective to treat the plants at this stage
because less energy is required to kill the plants at this stage than at any
other. Biennials and Annuals are controlled by a fall or early spring
treatment, and perennials are controlled best with a fall treatment as well.
15.What are the effects of soil texture and organic matter content on application
of soil herbicides? - ANSWER 🗸 Soil organic matter and clay particles can
adsorb soil-applied herbicides, meaning more herbicide will be required in
these types of soils because the herbicide will be bound to the soil particles
and will not be available to be absorbed by the weeds.
16.What is the difference between the different types of pesticide names? -
ANSWER 🗸
Chemical name: complies with accepted guidelines established by
chemists.
Common name: normally appear on the label before or above the
chemical name and refers to an active ingredient.
Trade name: the name given by the manufacturer, appears in large
letters at the top of the label
17.Compare selective and non-selective herbicides: - ANSWER 🗸 Selective
herbicides only harm certain plants and leave others unharmed. Non-
selective herbicides are toxic to most or all plants.