IOWA 3OT PESTICIDE MANUAL EXAM QUESTIONS WITH
COMPLETE SOLUTIONS GUARANTEED PASS BRAND NEW 2025
Pre-emergence - CORRECT ANSWER - >Applied prior to weed
seed germination.
Little to no effect on weeds that have emerged
Post-emergence - CORRECT ANSWER - >Applied to actively
growing plants.
Work best in sunlight, high humidity, good soil moisture
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
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
Perennial weeds can be controlled in early bloom stage or in
the fall
Explain how pesticide resistance develops in a pest population -
CORRECT ANSWER - >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 - CORRECT ANSWER -
>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 - CORRECT ANSWER
- >Correctly chosen nozzle
Reduced spray pressure
Monitor weather conditions
Keeping the spray nozzle near the target
EPA reported this much was spent on pesticide use for
industrial/commercial/government sector and this much was
spending 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.
, 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
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
COMPLETE SOLUTIONS GUARANTEED PASS BRAND NEW 2025
Pre-emergence - CORRECT ANSWER - >Applied prior to weed
seed germination.
Little to no effect on weeds that have emerged
Post-emergence - CORRECT ANSWER - >Applied to actively
growing plants.
Work best in sunlight, high humidity, good soil moisture
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
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
Perennial weeds can be controlled in early bloom stage or in
the fall
Explain how pesticide resistance develops in a pest population -
CORRECT ANSWER - >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 - CORRECT ANSWER -
>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 - CORRECT ANSWER
- >Correctly chosen nozzle
Reduced spray pressure
Monitor weather conditions
Keeping the spray nozzle near the target
EPA reported this much was spent on pesticide use for
industrial/commercial/government sector and this much was
spending 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.
, 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
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
