VIRGINIA COMMERCIAL PESTICIDE
APPLICATORS CORE EXAM Questions
with 100% Verified Answers Latest Versions
2025 GRADED A+
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)
,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
what is physical control and how can it be used to manage certain pests?
changing certain environmental conditions such as water, air movement, temperature,
, light and humidity. such changes can control or even eradicate pests.
name 5 important qualities to consider when choosing a pesticide.
efficacy, persistence, mobility, toxicity, and mode of action
what is the difference between selective and non selective herbicides?
a selective herbicide controls some plants and not others (ex. sethoxydim only controls
grasses and not broadleaf)
non selective controls all types of plants.
what is the difference between residual and non residual pesticides?
nonresidual pesticides break down quickly into nontoxic by-products. a residual
pesticide may remain active for weeks, months, or even years
define pesticide resistance
the ability of a pest population that is repeatedly exposed to a given pesticide to resist
and survive its effects. an insect population, for example, often has "abnormal"
members that can tolerate exposure to insecticide doses that kill "normal" members.
Each time the same MOA is used, the susceptible members die, and the resistant
members survive and breed. in time most of the members will be resistant to the
insecticide.
how can you slow down or limit pesticide resistance?
1. rotate MOAs
2. use pesticides that target multiple sites in a pest
3. use new or altered pesticides
4. treat alternate generations of pests
5. use non chemical control methods where feasible
explain the difference between the words "label" and "labeling"
The label is the information printed on tor attached to the pesticide container. labeling
includes the label itself, plus all other info recieved from the manufacturer about the
APPLICATORS CORE EXAM Questions
with 100% Verified Answers Latest Versions
2025 GRADED A+
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)
,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
what is physical control and how can it be used to manage certain pests?
changing certain environmental conditions such as water, air movement, temperature,
, light and humidity. such changes can control or even eradicate pests.
name 5 important qualities to consider when choosing a pesticide.
efficacy, persistence, mobility, toxicity, and mode of action
what is the difference between selective and non selective herbicides?
a selective herbicide controls some plants and not others (ex. sethoxydim only controls
grasses and not broadleaf)
non selective controls all types of plants.
what is the difference between residual and non residual pesticides?
nonresidual pesticides break down quickly into nontoxic by-products. a residual
pesticide may remain active for weeks, months, or even years
define pesticide resistance
the ability of a pest population that is repeatedly exposed to a given pesticide to resist
and survive its effects. an insect population, for example, often has "abnormal"
members that can tolerate exposure to insecticide doses that kill "normal" members.
Each time the same MOA is used, the susceptible members die, and the resistant
members survive and breed. in time most of the members will be resistant to the
insecticide.
how can you slow down or limit pesticide resistance?
1. rotate MOAs
2. use pesticides that target multiple sites in a pest
3. use new or altered pesticides
4. treat alternate generations of pests
5. use non chemical control methods where feasible
explain the difference between the words "label" and "labeling"
The label is the information printed on tor attached to the pesticide container. labeling
includes the label itself, plus all other info recieved from the manufacturer about the
