Texas Agricultural Insect Control Exam
Review with Answers and Rationales | 100%
Pass Guaranteed | Graded A+
1. What is the primary purpose of Integrated Pest Management
(IPM)?
A. Eliminate all insects
B. Use only chemical pesticides
C. Manage pests at acceptable levels using multiple control
methods
D. Apply pesticides weekly
IPM focuses on economic thresholds and combining cultural,
biological, and chemical methods rather than eradication.
2. The economic threshold is the point at which:
A. Pests first appear
B. Control action should be taken to prevent economic loss
C. All pests must be eliminated
D. Crops are already destroyed
The economic threshold is the action point before the economic injury
level is reached.
3. Which insect mouthpart type is typical of aphids?
A. Chewing
B. Sponging
C. Siphoning
D. Piercing-sucking
Aphids pierce plant tissue and suck sap, causing distortion and
disease transmission.
,4. Complete metamorphosis includes which stages?
A. Egg–nymph–adult
B. Egg–pupa–adult
C. Egg–larva–pupa–adult
D. Larva–adult
Holometabolous insects have four distinct life stages.
5. Grasshoppers undergo:
A. Complete metamorphosis
B. Simple (incomplete) metamorphosis
C. No metamorphosis
D. Alternating generations
They develop from egg to nymph to adult without a pupal stage.
6. Which beneficial insect is a predator of aphids?
A. Corn earworm
B. Lady beetle
C. Boll weevil
D. Armyworm
Lady beetles consume large numbers of aphids and are important
biological control agents.
7. The primary function of insecticides classified as systemic is to:
A. Kill only on contact
B. Repel insects
C. Move within the plant to control feeding insects
D. Sterilize insects only
Systemic insecticides are absorbed and translocated within plant
tissues.
, 8. Which factor most affects pesticide drift?
A. Soil texture
B. Crop variety
C. Wind speed
D. Insect size
Higher wind speeds increase the likelihood of off-target movement.
9. The signal word “Danger” on a pesticide label indicates:
A. Slight toxicity
B. Moderate toxicity
C. High toxicity
D. Non-toxic product
“Danger” is used for highly toxic or corrosive products.
10. The restricted-entry interval (REI) refers to:
A. Time before harvest
B. Time before mixing
C. Time that must pass before workers reenter a treated area
D. Time between applications
REIs protect workers from pesticide exposure.
11. The pre-harvest interval (PHI) is:
A. Time between scouting
B. Minimum time between pesticide application and harvest
C. Time before planting
D. Time before irrigation
PHIs ensure pesticide residues decline to legal levels.
12. Which insect order includes beetles?
A. Diptera
Review with Answers and Rationales | 100%
Pass Guaranteed | Graded A+
1. What is the primary purpose of Integrated Pest Management
(IPM)?
A. Eliminate all insects
B. Use only chemical pesticides
C. Manage pests at acceptable levels using multiple control
methods
D. Apply pesticides weekly
IPM focuses on economic thresholds and combining cultural,
biological, and chemical methods rather than eradication.
2. The economic threshold is the point at which:
A. Pests first appear
B. Control action should be taken to prevent economic loss
C. All pests must be eliminated
D. Crops are already destroyed
The economic threshold is the action point before the economic injury
level is reached.
3. Which insect mouthpart type is typical of aphids?
A. Chewing
B. Sponging
C. Siphoning
D. Piercing-sucking
Aphids pierce plant tissue and suck sap, causing distortion and
disease transmission.
,4. Complete metamorphosis includes which stages?
A. Egg–nymph–adult
B. Egg–pupa–adult
C. Egg–larva–pupa–adult
D. Larva–adult
Holometabolous insects have four distinct life stages.
5. Grasshoppers undergo:
A. Complete metamorphosis
B. Simple (incomplete) metamorphosis
C. No metamorphosis
D. Alternating generations
They develop from egg to nymph to adult without a pupal stage.
6. Which beneficial insect is a predator of aphids?
A. Corn earworm
B. Lady beetle
C. Boll weevil
D. Armyworm
Lady beetles consume large numbers of aphids and are important
biological control agents.
7. The primary function of insecticides classified as systemic is to:
A. Kill only on contact
B. Repel insects
C. Move within the plant to control feeding insects
D. Sterilize insects only
Systemic insecticides are absorbed and translocated within plant
tissues.
, 8. Which factor most affects pesticide drift?
A. Soil texture
B. Crop variety
C. Wind speed
D. Insect size
Higher wind speeds increase the likelihood of off-target movement.
9. The signal word “Danger” on a pesticide label indicates:
A. Slight toxicity
B. Moderate toxicity
C. High toxicity
D. Non-toxic product
“Danger” is used for highly toxic or corrosive products.
10. The restricted-entry interval (REI) refers to:
A. Time before harvest
B. Time before mixing
C. Time that must pass before workers reenter a treated area
D. Time between applications
REIs protect workers from pesticide exposure.
11. The pre-harvest interval (PHI) is:
A. Time between scouting
B. Minimum time between pesticide application and harvest
C. Time before planting
D. Time before irrigation
PHIs ensure pesticide residues decline to legal levels.
12. Which insect order includes beetles?
A. Diptera
