Herbicide Application Terminology Success Kit |
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Control - Reduction of a weed problem to the extent that it does not cause economic
damage.
Cut-surface application - Treatment applied to frills or girdles made through the bark into
the wood of a tree.
Defoliant - A substance or mixture of substances used primarily to cause the leaves or
foliage to drop from a plant.
Degradation - The process by which a chemical is decomposed or broken down into
nontoxic compounds or elements.
Desiccant - Any substance or mixture of substances used to accelerate the drying of plant
tissue.
Dicotyledon (dicot) - A plant that has two seed leaves or cotyledons; broadleaf plant.
Directed application - Precise application to a specific area or plant part such as to a row
or bed or to the lower leaves and stems of plants.
Dose (rate) - Refers to the amount of active ingredient applied to a unit area regardless of
percentage of chemical in the carrier.
Drift - The movement of airborne particles or vapors away from the intended target area.
Dry flowable (DF) - Formulation made of finely ground herbicide particles compressed
into granules that can be suspended readily in water for application.
Efficacy - How well an herbicide application works to control the target plants.
Emergence - The act of germinating seedlings breaking through the soil surface.
Emulsifiable concentrate (EC) - A concentrated herbicide formulation containing organic
solvents and emulsifiers to facilitate mixing with water.
Eradication - The elimination of all live plant parts and seeds of a weed from a site.
, Flowable (F) - Formulation made of finely ground herbicide particles that are suspended
in a liquid, which then is diluted with water for application.
Foliar application - Directing a pesticide to plant leaves or foliage.
Formulation - A mixture containing the active ingredient of an herbicide and other
additives required for easy mixing and application.
GPA - Gallons per acre.
GPM - Gallons per minute.
Granule or granular (G) - A dry formulation of herbicide in which the active ingredient is
impregnated on small particles of carrier such as clay or ground corncobs.
Grass - Botanically, any plant of the Poaceae family characterized by narrow leaves with
parallel veins, jointed stems, and inconspicuous flowers usually arranged in spikelets.
Hazard - The potential for injury or detrimental effects to result if a substance is not used
properly.
Herbaceous plant - A vascular plant that does not develop persistent aboveground
woody tissue.
Herbicide - A chemical used to kill plants or severely interrupt their normal growth
processes.
Hormone - A naturally occurring substance in plants that controls growth or other
physiological processes.
Incorporate into soil - To mix an herbicide into the soil, generally by mechanical means.
Inert ingredient - That part of a formulation without toxic or killing properties, sometimes
called the carrier.
Inhibit - To hold in check or stop.
Integrated control - Decision-based approaches for pest control using pesticides when
necessary and at appropriate rates.
Lateral movement - Chemical movement in a plant or in the soil to the side, or horizontal
movement in the roots or soil layer.
Leaching - The downward movement of a substance in solution through the soil.
Verified Quizzes + Top-Scoring Assignments | A+
Guaranteed
Control - Reduction of a weed problem to the extent that it does not cause economic
damage.
Cut-surface application - Treatment applied to frills or girdles made through the bark into
the wood of a tree.
Defoliant - A substance or mixture of substances used primarily to cause the leaves or
foliage to drop from a plant.
Degradation - The process by which a chemical is decomposed or broken down into
nontoxic compounds or elements.
Desiccant - Any substance or mixture of substances used to accelerate the drying of plant
tissue.
Dicotyledon (dicot) - A plant that has two seed leaves or cotyledons; broadleaf plant.
Directed application - Precise application to a specific area or plant part such as to a row
or bed or to the lower leaves and stems of plants.
Dose (rate) - Refers to the amount of active ingredient applied to a unit area regardless of
percentage of chemical in the carrier.
Drift - The movement of airborne particles or vapors away from the intended target area.
Dry flowable (DF) - Formulation made of finely ground herbicide particles compressed
into granules that can be suspended readily in water for application.
Efficacy - How well an herbicide application works to control the target plants.
Emergence - The act of germinating seedlings breaking through the soil surface.
Emulsifiable concentrate (EC) - A concentrated herbicide formulation containing organic
solvents and emulsifiers to facilitate mixing with water.
Eradication - The elimination of all live plant parts and seeds of a weed from a site.
, Flowable (F) - Formulation made of finely ground herbicide particles that are suspended
in a liquid, which then is diluted with water for application.
Foliar application - Directing a pesticide to plant leaves or foliage.
Formulation - A mixture containing the active ingredient of an herbicide and other
additives required for easy mixing and application.
GPA - Gallons per acre.
GPM - Gallons per minute.
Granule or granular (G) - A dry formulation of herbicide in which the active ingredient is
impregnated on small particles of carrier such as clay or ground corncobs.
Grass - Botanically, any plant of the Poaceae family characterized by narrow leaves with
parallel veins, jointed stems, and inconspicuous flowers usually arranged in spikelets.
Hazard - The potential for injury or detrimental effects to result if a substance is not used
properly.
Herbaceous plant - A vascular plant that does not develop persistent aboveground
woody tissue.
Herbicide - A chemical used to kill plants or severely interrupt their normal growth
processes.
Hormone - A naturally occurring substance in plants that controls growth or other
physiological processes.
Incorporate into soil - To mix an herbicide into the soil, generally by mechanical means.
Inert ingredient - That part of a formulation without toxic or killing properties, sometimes
called the carrier.
Inhibit - To hold in check or stop.
Integrated control - Decision-based approaches for pest control using pesticides when
necessary and at appropriate rates.
Lateral movement - Chemical movement in a plant or in the soil to the side, or horizontal
movement in the roots or soil layer.
Leaching - The downward movement of a substance in solution through the soil.
