2025 VIRGINIA COMMERCIAL PESTICIDE APPLICATORS ACTUAL
EXAM QUESTIONS WITH ANSWERS 2025/2026 GRADED A+
what are beneficial insects? and why are they important to agriculture? - insects that are
pollinators (bees and butterflies) or pest predators (ladybeetles and lacewings). with out
pollinators many types of plants could not reproduce and beneficial predators feed on
harmful insects, mites, and weeds.
how do mites harm plants? - They suck the plant juices, eat the underside of leaves,
and disfigure the plants they feed on.
what is an economic threshold? - the level at which economic losses caused by pest
damage, if the pest population continued to grow, would be greater than the cost of
controlling the pests. reaching an economic threshold usually prompts some kind of
pest control action.
how are thresholds important to a sound pest control strategy? - setting a treatment or
action threshold is essential to prevent the pests in an area from causing unacceptable
injury or harm. action thresholds vary: sometimes one pest is too many (like a rat in a
food processing facility). Thresholds help producers and applicators weigh the cost of
pest control against the cost of a pest infestation
what is monitoring and how is it important to a sound pest control strategy? - regular
checking or scouting for pests in a designated area. Monitoring will tell you what pests
are in an area, how many are in the area, and how much damage they are causing. it
will help determine if the pest population has reached the treatment threshold and
whether control measures have worked.
what is the difference between prevention, suppression and eradication of a pest? -
prevention means reducing the chances that a pest will become a problem. suppression
means reducing pest numbers or damage to an acceptable level. Eradication means
destroying an entire pest population.
how could you prevent a pest infestation? - plant weed- and disease- free seed, choose
plants resistant to diseases and insects, and practice good sanitation. other
preventative techniques include excluding pests from the target area and using pre-
emergent herbicides to kill weed seeds.
briefly define IPM - Integrated Pest Management is an ecological approach to pest
control. it is based on the habitat and life-cycle of the pest. IPM combines chemical and
nonchemical methods into a single plan or strategy. the goal of an IPM program is to
reduce pest populations to an acceptable level in a way that is practical, cost-effective,
and safe for the environment as well as human health.
Give several reasons to use IPM rather than using only a pesticide. - IPM programs:
1. often ensure better success at the treatment site
, 2. promote a more balanced ecosystem and are more environmentally friendly
3. are less likely to lead to pesticide resistance and secondary pest outbreaks
4. may reduce pesticide use and can help protect beneficial insects
5. are often more acceptable to the public.
name at least 5 basic steps in an effective IPM program - 1. idnetify pest
2. monitor the pest
3. decide whether control is justified
4. determine a pest control goal
5. know what control tactics are available
6. evaluate the benefits and risks of each tactic
7. choose the most effective strategies that will cause the least harm to people and
environment
8. use each tactic correctly
9. observe all applicable local, state, and federal regulations.
10. record and evaluate results
name 5 IPM elements - host resistance
biological control
cultural control
mechanical and physical control
and chemical control
what is host resistance? - the ability of a plant to withstand pests
what is biological control? - the use of living organisms to control pests. these may be
natural enemies or biologically altering the pest (releasing sterile males into pest
population)
what is cultural control? - changing the habitat where the pest flourishes. ex. cultural
practices and sanitation
name at least 6 cultural practices used to manage pests - pruning, thinning and
fertilization
rotating crops
tillage
mulching
varying time of planting or harvest
trap crops
adjusting row width
what is sanitation? - use of hygiene practices to manage pests.
what type of mechanical methods could you use to control weeds? - weed eaters,
shovels, scythes, plows, disks, and mowers
EXAM QUESTIONS WITH ANSWERS 2025/2026 GRADED A+
what are beneficial insects? and why are they important to agriculture? - insects that are
pollinators (bees and butterflies) or pest predators (ladybeetles and lacewings). with out
pollinators many types of plants could not reproduce and beneficial predators feed on
harmful insects, mites, and weeds.
how do mites harm plants? - They suck the plant juices, eat the underside of leaves,
and disfigure the plants they feed on.
what is an economic threshold? - the level at which economic losses caused by pest
damage, if the pest population continued to grow, would be greater than the cost of
controlling the pests. reaching an economic threshold usually prompts some kind of
pest control action.
how are thresholds important to a sound pest control strategy? - setting a treatment or
action threshold is essential to prevent the pests in an area from causing unacceptable
injury or harm. action thresholds vary: sometimes one pest is too many (like a rat in a
food processing facility). Thresholds help producers and applicators weigh the cost of
pest control against the cost of a pest infestation
what is monitoring and how is it important to a sound pest control strategy? - regular
checking or scouting for pests in a designated area. Monitoring will tell you what pests
are in an area, how many are in the area, and how much damage they are causing. it
will help determine if the pest population has reached the treatment threshold and
whether control measures have worked.
what is the difference between prevention, suppression and eradication of a pest? -
prevention means reducing the chances that a pest will become a problem. suppression
means reducing pest numbers or damage to an acceptable level. Eradication means
destroying an entire pest population.
how could you prevent a pest infestation? - plant weed- and disease- free seed, choose
plants resistant to diseases and insects, and practice good sanitation. other
preventative techniques include excluding pests from the target area and using pre-
emergent herbicides to kill weed seeds.
briefly define IPM - Integrated Pest Management is an ecological approach to pest
control. it is based on the habitat and life-cycle of the pest. IPM combines chemical and
nonchemical methods into a single plan or strategy. the goal of an IPM program is to
reduce pest populations to an acceptable level in a way that is practical, cost-effective,
and safe for the environment as well as human health.
Give several reasons to use IPM rather than using only a pesticide. - IPM programs:
1. often ensure better success at the treatment site
, 2. promote a more balanced ecosystem and are more environmentally friendly
3. are less likely to lead to pesticide resistance and secondary pest outbreaks
4. may reduce pesticide use and can help protect beneficial insects
5. are often more acceptable to the public.
name at least 5 basic steps in an effective IPM program - 1. idnetify pest
2. monitor the pest
3. decide whether control is justified
4. determine a pest control goal
5. know what control tactics are available
6. evaluate the benefits and risks of each tactic
7. choose the most effective strategies that will cause the least harm to people and
environment
8. use each tactic correctly
9. observe all applicable local, state, and federal regulations.
10. record and evaluate results
name 5 IPM elements - host resistance
biological control
cultural control
mechanical and physical control
and chemical control
what is host resistance? - the ability of a plant to withstand pests
what is biological control? - the use of living organisms to control pests. these may be
natural enemies or biologically altering the pest (releasing sterile males into pest
population)
what is cultural control? - changing the habitat where the pest flourishes. ex. cultural
practices and sanitation
name at least 6 cultural practices used to manage pests - pruning, thinning and
fertilization
rotating crops
tillage
mulching
varying time of planting or harvest
trap crops
adjusting row width
what is sanitation? - use of hygiene practices to manage pests.
what type of mechanical methods could you use to control weeds? - weed eaters,
shovels, scythes, plows, disks, and mowers
