TruGreen Pesticide Certification 6,3a,3b
Questions and Answers Graded A+
Abiotic disorder - Correct answer-A non-pest plant stress such as improper
nutrition, too much or too little water, winter or frost injury
Action threshold - Correct answer-The pest density at which action (such as
pesticide application) is justified to prevent further damage.
Adelgid - Correct answer-An insect closely related to aphids that feed on conifers.
Their feeding often causes galls to form.
Aesthetic injury level - Correct answer-The point at which damage from a pest
becomes noticeable enough to negatively affect the visible quality of the plant.
This may vary, based in part on the distance the plant is located from walkways.
(and therefore, on the likelihood of the damage being observed.
Airblast sprayer - Correct answer-Pesticide application equipment that uses a
stream of air from a fan to break up and distribute the pesicide onto the plant that is
being treated.
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,Allelopathy/allelopathic - Correct answer-When one plant species suppresses the
growth of another. For example, walnut trees produce chemicals that will not allow
plants to grow under their canopies.
Annual - Correct answer-A plant that completes its life cycle and dies in a single
year or growing season.
Bacteria - Correct answer-A group of single-celled microorganisms, of which there
are typically 40 million in a gram of soil. A few species are the causes of diseases
such as fire blight and leaf spot in plants.
Bactericide - Correct answer-A pesticide used to manage a disease cause by
bacteria
Balled and burlapped - Correct answer-A standard method used to wrap a tree or
shrub rootball with burlap to keep the soil around the roots when digging the plant
from the field to move it for transplanting. Often, larger trees will have a wire
mesh placed around the burlap to provide more support for transporting. The wire
mesh should be removed prior to planting. The burlap should (optimally) be
removed as much as possible also, as amany types of modern burlap contains
synthetic fibers that will not rot. If the burlap is natural fibers it should at least be
removed from the top one-third of the rootball to avoid the burlap being exposed to
the air and wicking moisture from the roots. Also called B&B.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,Basal Drench - Correct answer-The mixing of a pesticide in a small volume of
water and applying to a 12-18 inch strip around the base of a tree or shrub. These
compounds are normally systemic and are absorbed by the roots of the plant.
Beauveria bassiana - Correct answer-A naturally occurring fungus that attacks a
number of insects and has been formulated as an insecticide.
Beneficial Insect - Correct answer-Insects that eat or develop inside or on pest
insects. Sometimes just referred to as "beneficials." Beneficial insects do not
damage landscape plants.
Biennial - Correct answer-A plant with a two-year life cycle.
Biochemical pesticide - Correct answer-A biologically derived chemical such as
insect sex pheromones that are used for pest control. They have the advantages of
being non-toxic and specific for controlling a particular species of pest.
Biocide - Correct answer-A substance that kills biological organisms.
Biological control - Correct answer-A method of controlling a pest by encouraging
and using natural controls such as parasitism, predation, and naturally occuring
diseases.
Biomagnification - Correct answer-A situation in which a predatory organism
continues to absorb pesticde as it eats prey that has been exposed to nonlethal
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, levels of pesticide; the accumulation of pesticide in the predator can lead to its
death.
Biopesticide - Correct answer-Pesticides cerived from natural materials such as
animals, plants, bacteria and certain minerals.
Broad-spectrum - Correct answer-A pesticde that affectsx a wide range of target
species.
Broad-spectrum fungicide - Correct answer-A fingicide that controls a wide range
of fungal organisms.
Broadcast application - Correct answer-A pesticide applied to a large area over all
of the plants.
Budbreak - Correct answer-The timme when dormant buds open into leaves or
flowers.
Bulb - Correct answer-An underground plant stem (such as an onion or tulip) that
is surrounded by fleshy leaves that are modified to store nutrients.
Calibration - Correct answer-the process of adjusting pesticide application
equipment to apply a specific amount of pesticide at a specific rate over a specific
area.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
Questions and Answers Graded A+
Abiotic disorder - Correct answer-A non-pest plant stress such as improper
nutrition, too much or too little water, winter or frost injury
Action threshold - Correct answer-The pest density at which action (such as
pesticide application) is justified to prevent further damage.
Adelgid - Correct answer-An insect closely related to aphids that feed on conifers.
Their feeding often causes galls to form.
Aesthetic injury level - Correct answer-The point at which damage from a pest
becomes noticeable enough to negatively affect the visible quality of the plant.
This may vary, based in part on the distance the plant is located from walkways.
(and therefore, on the likelihood of the damage being observed.
Airblast sprayer - Correct answer-Pesticide application equipment that uses a
stream of air from a fan to break up and distribute the pesicide onto the plant that is
being treated.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,Allelopathy/allelopathic - Correct answer-When one plant species suppresses the
growth of another. For example, walnut trees produce chemicals that will not allow
plants to grow under their canopies.
Annual - Correct answer-A plant that completes its life cycle and dies in a single
year or growing season.
Bacteria - Correct answer-A group of single-celled microorganisms, of which there
are typically 40 million in a gram of soil. A few species are the causes of diseases
such as fire blight and leaf spot in plants.
Bactericide - Correct answer-A pesticide used to manage a disease cause by
bacteria
Balled and burlapped - Correct answer-A standard method used to wrap a tree or
shrub rootball with burlap to keep the soil around the roots when digging the plant
from the field to move it for transplanting. Often, larger trees will have a wire
mesh placed around the burlap to provide more support for transporting. The wire
mesh should be removed prior to planting. The burlap should (optimally) be
removed as much as possible also, as amany types of modern burlap contains
synthetic fibers that will not rot. If the burlap is natural fibers it should at least be
removed from the top one-third of the rootball to avoid the burlap being exposed to
the air and wicking moisture from the roots. Also called B&B.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,Basal Drench - Correct answer-The mixing of a pesticide in a small volume of
water and applying to a 12-18 inch strip around the base of a tree or shrub. These
compounds are normally systemic and are absorbed by the roots of the plant.
Beauveria bassiana - Correct answer-A naturally occurring fungus that attacks a
number of insects and has been formulated as an insecticide.
Beneficial Insect - Correct answer-Insects that eat or develop inside or on pest
insects. Sometimes just referred to as "beneficials." Beneficial insects do not
damage landscape plants.
Biennial - Correct answer-A plant with a two-year life cycle.
Biochemical pesticide - Correct answer-A biologically derived chemical such as
insect sex pheromones that are used for pest control. They have the advantages of
being non-toxic and specific for controlling a particular species of pest.
Biocide - Correct answer-A substance that kills biological organisms.
Biological control - Correct answer-A method of controlling a pest by encouraging
and using natural controls such as parasitism, predation, and naturally occuring
diseases.
Biomagnification - Correct answer-A situation in which a predatory organism
continues to absorb pesticde as it eats prey that has been exposed to nonlethal
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, levels of pesticide; the accumulation of pesticide in the predator can lead to its
death.
Biopesticide - Correct answer-Pesticides cerived from natural materials such as
animals, plants, bacteria and certain minerals.
Broad-spectrum - Correct answer-A pesticde that affectsx a wide range of target
species.
Broad-spectrum fungicide - Correct answer-A fingicide that controls a wide range
of fungal organisms.
Broadcast application - Correct answer-A pesticide applied to a large area over all
of the plants.
Budbreak - Correct answer-The timme when dormant buds open into leaves or
flowers.
Bulb - Correct answer-An underground plant stem (such as an onion or tulip) that
is surrounded by fleshy leaves that are modified to store nutrients.
Calibration - Correct answer-the process of adjusting pesticide application
equipment to apply a specific amount of pesticide at a specific rate over a specific
area.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
