Herbicide Application Terminology
Control - 🧠 ANSWER ✔✔Reduction of a weed problem to the extent that it
does not cause economic damage.
Cut-surface application - 🧠 ANSWER ✔✔Treatment applied to frills or
girdles made through the bark into the wood of a tree.
Defoliant - 🧠 ANSWER ✔✔A substance or mixture of substances used
primarily to cause the leaves or foliage to drop from a plant.
Degradation - 🧠 ANSWER ✔✔The process by which a chemical is
decomposed or broken down into nontoxic compounds or elements.
Desiccant - 🧠 ANSWER ✔✔Any substance or mixture of substances used
to accelerate the drying of plant tissue.
, Dicotyledon (dicot) - 🧠 ANSWER ✔✔A plant that has two seed leaves or
cotyledons; broadleaf plant.
Directed application - 🧠 ANSWER ✔✔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) - 🧠 ANSWER ✔✔Refers to the amount of active ingredient
applied to a unit area regardless of percentage of chemical in the carrier.
Drift - 🧠 ANSWER ✔✔The movement of airborne particles or vapors away
from the intended target area.
Dry flowable (DF) - 🧠 ANSWER ✔✔Formulation made of finely ground
herbicide particles compressed into granules that can be suspended readily
in water for application.
Efficacy - 🧠 ANSWER ✔✔How well an herbicide application works to
control the target plants.
Emergence - 🧠 ANSWER ✔✔The act of germinating seedlings breaking
through the soil surface.
Control - 🧠 ANSWER ✔✔Reduction of a weed problem to the extent that it
does not cause economic damage.
Cut-surface application - 🧠 ANSWER ✔✔Treatment applied to frills or
girdles made through the bark into the wood of a tree.
Defoliant - 🧠 ANSWER ✔✔A substance or mixture of substances used
primarily to cause the leaves or foliage to drop from a plant.
Degradation - 🧠 ANSWER ✔✔The process by which a chemical is
decomposed or broken down into nontoxic compounds or elements.
Desiccant - 🧠 ANSWER ✔✔Any substance or mixture of substances used
to accelerate the drying of plant tissue.
, Dicotyledon (dicot) - 🧠 ANSWER ✔✔A plant that has two seed leaves or
cotyledons; broadleaf plant.
Directed application - 🧠 ANSWER ✔✔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) - 🧠 ANSWER ✔✔Refers to the amount of active ingredient
applied to a unit area regardless of percentage of chemical in the carrier.
Drift - 🧠 ANSWER ✔✔The movement of airborne particles or vapors away
from the intended target area.
Dry flowable (DF) - 🧠 ANSWER ✔✔Formulation made of finely ground
herbicide particles compressed into granules that can be suspended readily
in water for application.
Efficacy - 🧠 ANSWER ✔✔How well an herbicide application works to
control the target plants.
Emergence - 🧠 ANSWER ✔✔The act of germinating seedlings breaking
through the soil surface.
