Category E: Turf And Ornamentals Minnesota
Pesticide Exam (Terms To Know)
Abiotic
related to factors or things that are separate and independent from living things;
nonliving (air pollutants, wind, water, temperature)
Abiotic stresses
Caused by unfavorable growing conditions (drought, wind, flood)
Absorption
The movement of pesticides into plants and, to a lesser degree, soil microorganisms.
Adjuvant/Additive
Substance added to a pesticide to improve its effectiveness, usability or safety such as
penetrants, spreader-stickers, storage stabilizers and wetting agents.
adventitious roots
roots produced by certain stems if roots are separated from the plant or if injury occurs.
,Adsorption
Adhesion of an ultra thin layer of molecules to the surface of particles. The molecules do
not penetrate the surface.
Aesthetic threshold
pest population density level when pest management methods must be applied to
prevent reaching unacceptable levels of aesthetic damage to a plant or landscape
Alleopathy
chemical inhibition of one plant by another
Annual
A plant that completes its life cycle in one year
Aquatic life
Fish, invertebrates and others that live in water.
Bacteria/Bacterium
Single celled organisms, some of which cause disease in plants and animals
, Bactericide
A chemical used to control bacteria.
Backflow
Reverse flow of a liquid (such as a pesticide) into a water supply. Backflow can occur
during chemigation or when filling tanks.
Beneficial insects
Insects that are essential for pollination of plants or play a role in plant health care.
Biennial
A plant that requires two growing seasons to complete its life cycle
Biotic
living things
Pesticide Exam (Terms To Know)
Abiotic
related to factors or things that are separate and independent from living things;
nonliving (air pollutants, wind, water, temperature)
Abiotic stresses
Caused by unfavorable growing conditions (drought, wind, flood)
Absorption
The movement of pesticides into plants and, to a lesser degree, soil microorganisms.
Adjuvant/Additive
Substance added to a pesticide to improve its effectiveness, usability or safety such as
penetrants, spreader-stickers, storage stabilizers and wetting agents.
adventitious roots
roots produced by certain stems if roots are separated from the plant or if injury occurs.
,Adsorption
Adhesion of an ultra thin layer of molecules to the surface of particles. The molecules do
not penetrate the surface.
Aesthetic threshold
pest population density level when pest management methods must be applied to
prevent reaching unacceptable levels of aesthetic damage to a plant or landscape
Alleopathy
chemical inhibition of one plant by another
Annual
A plant that completes its life cycle in one year
Aquatic life
Fish, invertebrates and others that live in water.
Bacteria/Bacterium
Single celled organisms, some of which cause disease in plants and animals
, Bactericide
A chemical used to control bacteria.
Backflow
Reverse flow of a liquid (such as a pesticide) into a water supply. Backflow can occur
during chemigation or when filling tanks.
Beneficial insects
Insects that are essential for pollination of plants or play a role in plant health care.
Biennial
A plant that requires two growing seasons to complete its life cycle
Biotic
living things
