Michigan Category 1D Nursery Pest Control
Exam Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1.
Which pest is most commonly associated with feeding on nursery plant
roots?
A. Aphids
B. Root weevils
C. Whiteflies
D. Thrips
Answer: B
Rationale: Root weevils feed on roots and can severely damage nursery
stock.
2.
,What is the primary purpose of Integrated Pest Management (IPM)?
A. Eliminate all pests completely
B. Rely only on chemical control
C. Combine methods to manage pests economically and safely
D. Increase pesticide use efficiency
Answer: C
Rationale: IPM integrates cultural, biological, and chemical methods for
sustainable control.
3.
Which insect stage is most resistant to insecticides?
A. Larva
B. Egg
C. Adult
D. Nymph
Answer: B
Rationale: Eggs have protective coverings making them harder to
control.
4.
,What is a sign of spider mite infestation in nurseries?
A. Holes in stems
B. Webbing and leaf stippling
C. Root rot
D. Bark splitting
Answer: B
Rationale: Spider mites cause stippling and fine webbing on leaves.
5.
Which disease is commonly spread by fungal spores in nursery stock?
A. Powdery mildew
B. Mosaic virus
C. Root knot nematode
D. Bacterial wilt
Answer: A
Rationale: Powdery mildew spreads via airborne fungal spores.
6.
Best cultural practice to reduce nursery diseases?
A. Increase watering
, B. Overcrowding plants
C. Improve air circulation
D. Use more fertilizer
Answer: C
Rationale: Good airflow reduces fungal disease development.
7.
What is a nematicide used for?
A. Killing fungi
B. Controlling nematodes
C. Killing weeds
D. Controlling rodents
Answer: B
Rationale: Nematicides target plant-parasitic nematodes.
8.
Which pest damages nursery plants by sucking plant sap?
A. Caterpillars
B. Aphids
C. Beetles
Exam Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1.
Which pest is most commonly associated with feeding on nursery plant
roots?
A. Aphids
B. Root weevils
C. Whiteflies
D. Thrips
Answer: B
Rationale: Root weevils feed on roots and can severely damage nursery
stock.
2.
,What is the primary purpose of Integrated Pest Management (IPM)?
A. Eliminate all pests completely
B. Rely only on chemical control
C. Combine methods to manage pests economically and safely
D. Increase pesticide use efficiency
Answer: C
Rationale: IPM integrates cultural, biological, and chemical methods for
sustainable control.
3.
Which insect stage is most resistant to insecticides?
A. Larva
B. Egg
C. Adult
D. Nymph
Answer: B
Rationale: Eggs have protective coverings making them harder to
control.
4.
,What is a sign of spider mite infestation in nurseries?
A. Holes in stems
B. Webbing and leaf stippling
C. Root rot
D. Bark splitting
Answer: B
Rationale: Spider mites cause stippling and fine webbing on leaves.
5.
Which disease is commonly spread by fungal spores in nursery stock?
A. Powdery mildew
B. Mosaic virus
C. Root knot nematode
D. Bacterial wilt
Answer: A
Rationale: Powdery mildew spreads via airborne fungal spores.
6.
Best cultural practice to reduce nursery diseases?
A. Increase watering
, B. Overcrowding plants
C. Improve air circulation
D. Use more fertilizer
Answer: C
Rationale: Good airflow reduces fungal disease development.
7.
What is a nematicide used for?
A. Killing fungi
B. Controlling nematodes
C. Killing weeds
D. Controlling rodents
Answer: B
Rationale: Nematicides target plant-parasitic nematodes.
8.
Which pest damages nursery plants by sucking plant sap?
A. Caterpillars
B. Aphids
C. Beetles
