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IOWA 3OT PESTICIDE MANUAL EXAM QUESTIONS
WITH COMPLETE SOLUTIONS GUARANTEED PASS
BRAND NEW 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 - (answers)1.4 billion; 3.3 billion
Define integrated pest management - (answers)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 - (answers)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 - (answers)Pesticides are not
meant to be a solution to all problems.
IPM provides the most effective solutions in all regards, which may not always be
pesticides.
List the six control strategies used in IPM - (answers)Cultural
Mechanical
,2
Host resistance
Biological
Regulatory
chemical
Define pesticide - (answers)Any material used to kill, attract, repel, regulate, or
interrupt growth and mating of pests, or to regulate plant growth
Contact pesticides - (answers)Must physically touch the pest organism or be
sprayed on the site the pest frequents to exert an action
Example would be protective fungicide
Must be re-applied to new plant tissues or if precipitation washes product off
Systemic pesticide - (answers)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 - (answers)Applied prior to weed seed germination.
Little to no effect on weeds that have emerged
,3
Postemergence - (answers)Applied to actively growing plants.
Work best in sunlight, high humidity, good soil moisture
Selective pesticide - (answers)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 - (answers)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 - (answers)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
Generally most effective when applied to actively growing plants and least
effective when plants are not actively growing
Annual weeds are easiest to control in early spring
Biennials should be treated in fall or early spring when in the rosette stage
, 4
Perennial weeds can be controlled in early bloom stage or in the fall
Explain how pesticide resistance develops in a pest population -
(answers)Resistance is the ability of a pest species that was once effectively
controlled by a pesticide to survive spray concentrations that were previously
effective.
It is an inherited trait that results from repeated applications of pesticides with
the same site of action or mode of action.
Examples include pythium blight in turfgrass, botrytis in ornamental, green peach
aphid in insects, and goosegrass weeds
State the importance of the numeric codes at the top of a pesticide label and
pesticide resistance - (answers)These codes help applicators quickly identify the
mode of action by looking at the group number.
Varying this can help reduce resistance
State four ways to minimize pesticide drift - (answers)Correctly chosen nozzle
Reduced spray pressure
Monitor weather conditions
Keeping the spray nozzle near the target
Summarize the ways in which pesticides can injure nontarget plants -
(answers)Contact can kill or injure plants
Movement into the root zone where it can be absorbed is also bad
IOWA 3OT PESTICIDE MANUAL EXAM QUESTIONS
WITH COMPLETE SOLUTIONS GUARANTEED PASS
BRAND NEW 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 - (answers)1.4 billion; 3.3 billion
Define integrated pest management - (answers)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 - (answers)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 - (answers)Pesticides are not
meant to be a solution to all problems.
IPM provides the most effective solutions in all regards, which may not always be
pesticides.
List the six control strategies used in IPM - (answers)Cultural
Mechanical
,2
Host resistance
Biological
Regulatory
chemical
Define pesticide - (answers)Any material used to kill, attract, repel, regulate, or
interrupt growth and mating of pests, or to regulate plant growth
Contact pesticides - (answers)Must physically touch the pest organism or be
sprayed on the site the pest frequents to exert an action
Example would be protective fungicide
Must be re-applied to new plant tissues or if precipitation washes product off
Systemic pesticide - (answers)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 - (answers)Applied prior to weed seed germination.
Little to no effect on weeds that have emerged
,3
Postemergence - (answers)Applied to actively growing plants.
Work best in sunlight, high humidity, good soil moisture
Selective pesticide - (answers)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 - (answers)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 - (answers)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
Generally most effective when applied to actively growing plants and least
effective when plants are not actively growing
Annual weeds are easiest to control in early spring
Biennials should be treated in fall or early spring when in the rosette stage
, 4
Perennial weeds can be controlled in early bloom stage or in the fall
Explain how pesticide resistance develops in a pest population -
(answers)Resistance is the ability of a pest species that was once effectively
controlled by a pesticide to survive spray concentrations that were previously
effective.
It is an inherited trait that results from repeated applications of pesticides with
the same site of action or mode of action.
Examples include pythium blight in turfgrass, botrytis in ornamental, green peach
aphid in insects, and goosegrass weeds
State the importance of the numeric codes at the top of a pesticide label and
pesticide resistance - (answers)These codes help applicators quickly identify the
mode of action by looking at the group number.
Varying this can help reduce resistance
State four ways to minimize pesticide drift - (answers)Correctly chosen nozzle
Reduced spray pressure
Monitor weather conditions
Keeping the spray nozzle near the target
Summarize the ways in which pesticides can injure nontarget plants -
(answers)Contact can kill or injure plants
Movement into the root zone where it can be absorbed is also bad
