Lowa 3OT Pesticide Manual Study Guide
Exam Latest 2026/2027 Updated
Verified Questions and Solutions A+
Pass Guaranteed
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
- ANS - 1.4 billion; 3.3 billion
Define integrated pest management
- ANS - 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
- ANS - 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
- ANS - 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
- ANS - Cultural
Mechanical
Host resistance
Biological
Regulatory
chemical
Define pesticide
- ANS - Any material used to kill, attract, repel, regulate, or interrupt
growth and mating of pests, or to regulate plant growth
Contact pesticides
- ANS - 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
- ANS - 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
- ANS - Applied prior to weed seed germination.
Little to no effect on weeds that have emerged
Postemergence
- ANS - Applied to actively growing plants.
Work best in sunlight, high humidity, good soil moisture
Selective pesticide
- ANS - 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
- ANS - 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
- ANS - 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
- ANS - 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
- ANS - These codes help applicators quickly identify the mode of action
by looking at the group number.
Varying this can help reduce resistance
Exam Latest 2026/2027 Updated
Verified Questions and Solutions A+
Pass Guaranteed
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
- ANS - 1.4 billion; 3.3 billion
Define integrated pest management
- ANS - 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
- ANS - 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
- ANS - 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
- ANS - Cultural
Mechanical
Host resistance
Biological
Regulatory
chemical
Define pesticide
- ANS - Any material used to kill, attract, repel, regulate, or interrupt
growth and mating of pests, or to regulate plant growth
Contact pesticides
- ANS - 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
- ANS - 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
- ANS - Applied prior to weed seed germination.
Little to no effect on weeds that have emerged
Postemergence
- ANS - Applied to actively growing plants.
Work best in sunlight, high humidity, good soil moisture
Selective pesticide
- ANS - 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
- ANS - 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
- ANS - 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
- ANS - 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
- ANS - These codes help applicators quickly identify the mode of action
by looking at the group number.
Varying this can help reduce resistance
