Iowa 3OT Pesticide Manual Exam
Questions And Answers Latest Update
2025
EPA reported this much was spent on pesticide use for
industrial/commercial/government sector and this much was spend
for home and garden sector in 2012 -
correct answer ✅1.4 billion; 3.3 billion
Define integrated pest management -
correct answer ✅System that uses all available and suitable pest
control tactics to reduce pest populations to tolerable levels while
minimizing adverse environmental side effects.
Explain how aesthetic thresholds affect IPM tactics -
correct answer ✅Aesthetic thresholds are based on tolerance,
personal comfort, taste, plant appearance, and specific site
conditions.
Nurseries and the like have zero pest tolerance whereas landscape
plantings might have low tolerance.
Healthy lawns have a higher threshold than stressed, weakened
lawns
Explain how IPM can reduce the use of pesticides -
correct answer ✅Pesticides are not meant to be a solution to all
problems.
,Iowa 3OT Pesticide Manual Exam
Questions And Answers Latest Update
2025
IPM provides the most effective solutions in all regards, which may
not always be pesticides.
List the six control strategies used in IPM -
correct answer ✅Cultural
Mechanical
Host resistance
Biological
Regulatory
chemical
Define pesticide -
correct answer ✅Any material used to kill, attract, repel, regulate,
or interrupt growth and mating of pests, or to regulate plant
growth
Contact pesticides -
correct answer ✅Must physically touch the pest organism or be
sprayed on the site the pest frequents to exert an action
Example would be protective fungicide
,Iowa 3OT Pesticide Manual Exam
Questions And Answers Latest Update
2025
Must be re-applied to new plant tissues or if precipitation washes
product off
Systemic pesticide -
correct answer ✅Enters the plant via roots or above ground plant
tissues and is moved inside of the plant.
Could render plant toxic to insect or mice
Could move through plant to kill parts of the plant
Example would be curative fungicide because it penetrates the
plant and stops disease
Preemergence -
correct answer ✅Applied prior to weed seed germination.
Little to no effect on weeds that have emerged
Postemergence -
correct answer ✅Applied to actively growing plants.
Work best in sunlight, high humidity, good soil moisture
, Iowa 3OT Pesticide Manual Exam
Questions And Answers Latest Update
2025
Selective pesticide -
correct answer ✅Control only certain types or stages of pests
while leaving nontarget organisms unaffected.
Example would be herbicide that kills broadleaf weeds and not
turfgrass
Nonselective pesticide -
correct answer ✅Exert their action on a wide variety of pests.
Control most of the plants they are sprayed on.
Identify the best application timing for effective pest control as it
pertains to: plant diseases, insects, and weeds -
correct answer ✅Plant diseases
For fungicides, it is critical that susceptible tissues be protected
before an infection begins or at the first appearance of any
symptoms
Insects
The younger the stage of insect, the more susceptible it is to
chemical control.
Weeds
Questions And Answers Latest Update
2025
EPA reported this much was spent on pesticide use for
industrial/commercial/government sector and this much was spend
for home and garden sector in 2012 -
correct answer ✅1.4 billion; 3.3 billion
Define integrated pest management -
correct answer ✅System that uses all available and suitable pest
control tactics to reduce pest populations to tolerable levels while
minimizing adverse environmental side effects.
Explain how aesthetic thresholds affect IPM tactics -
correct answer ✅Aesthetic thresholds are based on tolerance,
personal comfort, taste, plant appearance, and specific site
conditions.
Nurseries and the like have zero pest tolerance whereas landscape
plantings might have low tolerance.
Healthy lawns have a higher threshold than stressed, weakened
lawns
Explain how IPM can reduce the use of pesticides -
correct answer ✅Pesticides are not meant to be a solution to all
problems.
,Iowa 3OT Pesticide Manual Exam
Questions And Answers Latest Update
2025
IPM provides the most effective solutions in all regards, which may
not always be pesticides.
List the six control strategies used in IPM -
correct answer ✅Cultural
Mechanical
Host resistance
Biological
Regulatory
chemical
Define pesticide -
correct answer ✅Any material used to kill, attract, repel, regulate,
or interrupt growth and mating of pests, or to regulate plant
growth
Contact pesticides -
correct answer ✅Must physically touch the pest organism or be
sprayed on the site the pest frequents to exert an action
Example would be protective fungicide
,Iowa 3OT Pesticide Manual Exam
Questions And Answers Latest Update
2025
Must be re-applied to new plant tissues or if precipitation washes
product off
Systemic pesticide -
correct answer ✅Enters the plant via roots or above ground plant
tissues and is moved inside of the plant.
Could render plant toxic to insect or mice
Could move through plant to kill parts of the plant
Example would be curative fungicide because it penetrates the
plant and stops disease
Preemergence -
correct answer ✅Applied prior to weed seed germination.
Little to no effect on weeds that have emerged
Postemergence -
correct answer ✅Applied to actively growing plants.
Work best in sunlight, high humidity, good soil moisture
, Iowa 3OT Pesticide Manual Exam
Questions And Answers Latest Update
2025
Selective pesticide -
correct answer ✅Control only certain types or stages of pests
while leaving nontarget organisms unaffected.
Example would be herbicide that kills broadleaf weeds and not
turfgrass
Nonselective pesticide -
correct answer ✅Exert their action on a wide variety of pests.
Control most of the plants they are sprayed on.
Identify the best application timing for effective pest control as it
pertains to: plant diseases, insects, and weeds -
correct answer ✅Plant diseases
For fungicides, it is critical that susceptible tissues be protected
before an infection begins or at the first appearance of any
symptoms
Insects
The younger the stage of insect, the more susceptible it is to
chemical control.
Weeds
