PCA INSCECT EXAM
2026/2027 WITH ACTUAL CORRECT
QUESTIONS AND VERIFIED DETAILED
ANSWERS |CURRENTLY TESTING
QUESTIONS AND SOLUTIONS|ALREADY
GRADED A+|NEWEST |BRAND NEW
VERSION|JUST RELEASED!!
Which of these arthropods has gradual metamorphosis
A. Termites
B. Fleas
C. Beetles
Termites
During which stages are plants least able to compensate for injury caused by insect pests?
A. During dormant periods
B. When fruit is forming
C. Just after flowering
During dormant periods
What groups of arthropods is often controlled with baits?
A. Slugs
B. Spider mites
C. Ticks
Slugs
Why does the development rate of insects increase when the temperature increases within
their species threshold?
A. Nutrients are abundant and are taken up more easily when temperatures are rising
1|Page
,B. Chemical reactions occur more frequently and proceed more rapidly at higher temps
C. Periods of aestivation last longer and allow for faster development during juvenile stages
Nutrients are abundant and are taken up more easily when temperatures are rising
Which of these techniques can be used to minimize secondary pest outbreaks?
A. Applying a persistent insecticide
B. Applying a contact insecticide
C. Applying a selective insecticide
Applying a contact insecticide
Which application technique conserves natural enemies most effectively?
A. Spot treatments
B. Broadcast treatments
C. Chemigation treatments
Spot treatments
When might a cotton grower expect a major influx of lygus bugs into his crop?
A. After plowing corn stalks in nearby fields
B. After harvesting alfalfa in nearby fields
C. After flail moving wheat stubble in nearby fields
After harvesting alfalfa in nearby fields
Which statement describes the challenge of sampling insects that are clumped in a field?
Absolute sampling is the only method of determining population densities
When dense populations of an insect species are found only in a few areas of a field, their
population distribution is best described as?
Clumped
Which characteristic makes an insecticide most likely to enter under most likely to enter under
water drinking supplies?
2|Page
, A. Vapor pressure
B. Persistence
C. Rate of uptake
Persistence
Which statement best describes the distinguishing characteristics of lygus bug?
A. Adults overwinter under the bark of dormant trees
B. Immatures are pale green and have five black spots
C. Thin membranous wings
Immatures are pale green and have black spots
Which component of a beetle's mouthparts enables it to bite off and chew pieces of it?
A. Maxilla
B. Mandible
C. Labrum
Mandible
Weevil chews longitudinal scars on leaves as adults
A. Diaprepes root weevil
B. Egyptian alfalfa weevil
C. Rice water weevil
Rice water weevil
Which of these factors can enhance reproductive success of insects when resources are low?
A. Longer life cycles
B. Laying many eggs
Laying many eggs
Which of these statements defines carrying capacity?
The maximum population a given environment will support
3|Page
2026/2027 WITH ACTUAL CORRECT
QUESTIONS AND VERIFIED DETAILED
ANSWERS |CURRENTLY TESTING
QUESTIONS AND SOLUTIONS|ALREADY
GRADED A+|NEWEST |BRAND NEW
VERSION|JUST RELEASED!!
Which of these arthropods has gradual metamorphosis
A. Termites
B. Fleas
C. Beetles
Termites
During which stages are plants least able to compensate for injury caused by insect pests?
A. During dormant periods
B. When fruit is forming
C. Just after flowering
During dormant periods
What groups of arthropods is often controlled with baits?
A. Slugs
B. Spider mites
C. Ticks
Slugs
Why does the development rate of insects increase when the temperature increases within
their species threshold?
A. Nutrients are abundant and are taken up more easily when temperatures are rising
1|Page
,B. Chemical reactions occur more frequently and proceed more rapidly at higher temps
C. Periods of aestivation last longer and allow for faster development during juvenile stages
Nutrients are abundant and are taken up more easily when temperatures are rising
Which of these techniques can be used to minimize secondary pest outbreaks?
A. Applying a persistent insecticide
B. Applying a contact insecticide
C. Applying a selective insecticide
Applying a contact insecticide
Which application technique conserves natural enemies most effectively?
A. Spot treatments
B. Broadcast treatments
C. Chemigation treatments
Spot treatments
When might a cotton grower expect a major influx of lygus bugs into his crop?
A. After plowing corn stalks in nearby fields
B. After harvesting alfalfa in nearby fields
C. After flail moving wheat stubble in nearby fields
After harvesting alfalfa in nearby fields
Which statement describes the challenge of sampling insects that are clumped in a field?
Absolute sampling is the only method of determining population densities
When dense populations of an insect species are found only in a few areas of a field, their
population distribution is best described as?
Clumped
Which characteristic makes an insecticide most likely to enter under most likely to enter under
water drinking supplies?
2|Page
, A. Vapor pressure
B. Persistence
C. Rate of uptake
Persistence
Which statement best describes the distinguishing characteristics of lygus bug?
A. Adults overwinter under the bark of dormant trees
B. Immatures are pale green and have five black spots
C. Thin membranous wings
Immatures are pale green and have black spots
Which component of a beetle's mouthparts enables it to bite off and chew pieces of it?
A. Maxilla
B. Mandible
C. Labrum
Mandible
Weevil chews longitudinal scars on leaves as adults
A. Diaprepes root weevil
B. Egyptian alfalfa weevil
C. Rice water weevil
Rice water weevil
Which of these factors can enhance reproductive success of insects when resources are low?
A. Longer life cycles
B. Laying many eggs
Laying many eggs
Which of these statements defines carrying capacity?
The maximum population a given environment will support
3|Page
