Washington Pesticide Laws and Safety Practice
2026Exam QUESTIONS WITH VERIFIED
ANSWERS
Save
Terms in this set (133)
What is a severe pest? A pest present in populations that are always
above the economic injury level in the absence of
control.
What is an occasional or secondary A pest that can cause damage above economic
pest? injury levels only at certain times.
What is a potential pest? A pest that typically causes no apparent economic
damage under normal circumstances.
What is a migratory pest? A pest that may cause serious economic damage
on a periodic basis.
What are the five steps of 1. Identify the pest to be managed.
developing an IPM program? 2. Define the management system.
3. Develop the pest management strategy.
4. Develop reliable monitoring techniques.
5. Use economic thresholds.
,What is an economic threshold? The level or density of a pest population where
control measures need to be applied to prevent
the pest from reaching the economic injury level.
What is an economic injury level? The pest population density that causes losses
equal to the cost of the control measures.
What are mechanical control Devices that prevent the spread or reduce the
methods? infestation of pests, primarily insects and
vertebrate animals. Mechanical controls include
hand destruction, traps, and mechanical exclusions
such as screens, nets, and fences.
What are physical control methods? The manipulation of water, humidity, temperature,
electric shock, or other radiant energy to kill, alter
the pests life cycle, or create an unfavorable
environment for the pest to live in.
What are cultural control methods? The manipulation of the environment to avert
serious pest damage. Cultural control methods
require knowledge of the plants needs and
potential problems. Ex: irrigation management,
rotating crops, pruning, cover crops, etc.
What are generic control methods? The use of plants and animals that are resistant to
attack by pests. Ex: Traditional breeding techniques
combined with genetic manipulation of plants to
promote host plant resistance to pests and disease.
What are biological control Involve the introduction, encouragement, and/or
methods? artificial increase of plants and insects/animals that
are parasites or predators of a pest species.
, What are chemical control methods? Involve the use of naturally or synthetically derived
chemicals that, kill, attract, repel, or otherwise
manage the growth of a pest.
Avicides Management of birds.
Bactericides Management of bacteria.
Fungicides Management of fungi.
Herbicides Management of plants.
Insecticides Management of insects and insect relatives.
Miticides Management of mites.
Molluscicides Management of snails and slugs.
Nematicides Management of nematodes.
Piscicides Management of pest fish.
Rodenticides Management of rodent populations.
Although not considered pesticides 1. Defoliants: Chemicals that cause leaves or foliage
by definition, what three classes of to drop from a plant.
chemicals are also regulated and 2. Dessicants: Chemicals that promote drying or
classified as such? loss of moisture in plant tissues.
3: Growth Regulators: Substances (other than
fertilizers or food) that alter the growth or
development of a plant or animal.
2026Exam QUESTIONS WITH VERIFIED
ANSWERS
Save
Terms in this set (133)
What is a severe pest? A pest present in populations that are always
above the economic injury level in the absence of
control.
What is an occasional or secondary A pest that can cause damage above economic
pest? injury levels only at certain times.
What is a potential pest? A pest that typically causes no apparent economic
damage under normal circumstances.
What is a migratory pest? A pest that may cause serious economic damage
on a periodic basis.
What are the five steps of 1. Identify the pest to be managed.
developing an IPM program? 2. Define the management system.
3. Develop the pest management strategy.
4. Develop reliable monitoring techniques.
5. Use economic thresholds.
,What is an economic threshold? The level or density of a pest population where
control measures need to be applied to prevent
the pest from reaching the economic injury level.
What is an economic injury level? The pest population density that causes losses
equal to the cost of the control measures.
What are mechanical control Devices that prevent the spread or reduce the
methods? infestation of pests, primarily insects and
vertebrate animals. Mechanical controls include
hand destruction, traps, and mechanical exclusions
such as screens, nets, and fences.
What are physical control methods? The manipulation of water, humidity, temperature,
electric shock, or other radiant energy to kill, alter
the pests life cycle, or create an unfavorable
environment for the pest to live in.
What are cultural control methods? The manipulation of the environment to avert
serious pest damage. Cultural control methods
require knowledge of the plants needs and
potential problems. Ex: irrigation management,
rotating crops, pruning, cover crops, etc.
What are generic control methods? The use of plants and animals that are resistant to
attack by pests. Ex: Traditional breeding techniques
combined with genetic manipulation of plants to
promote host plant resistance to pests and disease.
What are biological control Involve the introduction, encouragement, and/or
methods? artificial increase of plants and insects/animals that
are parasites or predators of a pest species.
, What are chemical control methods? Involve the use of naturally or synthetically derived
chemicals that, kill, attract, repel, or otherwise
manage the growth of a pest.
Avicides Management of birds.
Bactericides Management of bacteria.
Fungicides Management of fungi.
Herbicides Management of plants.
Insecticides Management of insects and insect relatives.
Miticides Management of mites.
Molluscicides Management of snails and slugs.
Nematicides Management of nematodes.
Piscicides Management of pest fish.
Rodenticides Management of rodent populations.
Although not considered pesticides 1. Defoliants: Chemicals that cause leaves or foliage
by definition, what three classes of to drop from a plant.
chemicals are also regulated and 2. Dessicants: Chemicals that promote drying or
classified as such? loss of moisture in plant tissues.
3: Growth Regulators: Substances (other than
fertilizers or food) that alter the growth or
development of a plant or animal.
