7/21/25, 9:07
PM
WA TURF AND ORNAMENTAL WEED
MANAGEMENT PRINCIPLES EXAM QUESTIONS
AND ANSWERS WITH COMPLETE SOLUTIONS
VERIFIED LATEST UPDATE GRADED A++
2025/2026
Terms in this set (119)
Absorption Penetration from the surface to below the
surface
Acid Equivalent The amount of herbicide in a formulation
(ae) when measured in its acid form.
Active Ingredient The chemical(s) in a formulated
(ai) product that is (are) principally
responsible for herbicide effects and
is (are) shown as active ingredient(s)
on herbicide labels.
Adjuvant Any substance in an herbicide
formulation or added to the spray
solution that enhances the
herbicide's effectiveness.
Adsorption Adherence of a substance to a surface.
Aeration The process of putting oxygen back
1/
13
, 7/21/25, 9:07
PM
into the soil by mechanically
opening up spaces in the soil.
Agitate To keep a mixture stirred up.
Alkalinity Containing sodium potassium
Annual A plant that completes its life cycle from
seed to maturity in one year.
Band or Row An application to a continuous
Application restricted area, such as along the
edge of a planting bed or driveway,
not over the entire area.
Band Treatment A treated strip.
Basal Treatment A treatment applied to the stems of
woody plants at and just above the
ground.
Bed 1)The soil in which ornamental plants
or turf grass is plant . 2)An area in
which seedlings or sprouts are grown
before transplanting.
A plant that completes its life cycle
Biennial in two years. The first year the seed
germinates; the plant produces
leaves, roots, and stores food. The
second year flowers and
produces fruits and seeds.
Biological Control Controlling a pest with existing or
2/
13
PM
WA TURF AND ORNAMENTAL WEED
MANAGEMENT PRINCIPLES EXAM QUESTIONS
AND ANSWERS WITH COMPLETE SOLUTIONS
VERIFIED LATEST UPDATE GRADED A++
2025/2026
Terms in this set (119)
Absorption Penetration from the surface to below the
surface
Acid Equivalent The amount of herbicide in a formulation
(ae) when measured in its acid form.
Active Ingredient The chemical(s) in a formulated
(ai) product that is (are) principally
responsible for herbicide effects and
is (are) shown as active ingredient(s)
on herbicide labels.
Adjuvant Any substance in an herbicide
formulation or added to the spray
solution that enhances the
herbicide's effectiveness.
Adsorption Adherence of a substance to a surface.
Aeration The process of putting oxygen back
1/
13
, 7/21/25, 9:07
PM
into the soil by mechanically
opening up spaces in the soil.
Agitate To keep a mixture stirred up.
Alkalinity Containing sodium potassium
Annual A plant that completes its life cycle from
seed to maturity in one year.
Band or Row An application to a continuous
Application restricted area, such as along the
edge of a planting bed or driveway,
not over the entire area.
Band Treatment A treated strip.
Basal Treatment A treatment applied to the stems of
woody plants at and just above the
ground.
Bed 1)The soil in which ornamental plants
or turf grass is plant . 2)An area in
which seedlings or sprouts are grown
before transplanting.
A plant that completes its life cycle
Biennial in two years. The first year the seed
germinates; the plant produces
leaves, roots, and stores food. The
second year flowers and
produces fruits and seeds.
Biological Control Controlling a pest with existing or
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13
