Texas Nursery/Floral Pest Control Exam
Review with Answers and Rationales |
100% Pass Guaranteed | Graded A+
1. Which pest type feeds by piercing plant tissue and sucking sap?
A. Caterpillars
B. Beetles
C. Aphids
D. Cutworms
Answer: C. Aphids
Piercing-sucking insects remove plant sap, causing curling, yellowing,
and honeydew.
2. Honeydew and sooty mold are commonly associated with:
A. Thrips
B. Aphids and whiteflies
C. Leaf miners
D. Grasshoppers
Answer: B. Aphids and whiteflies
These pests excrete sugary honeydew that supports fungal growth.
3. The most effective long-term pest management strategy is:
A. Weekly pesticide applications
B. Integrated Pest Management (IPM)
C. Using the strongest pesticide available
D. Treating only after severe damage
Answer: B. Integrated Pest Management (IPM)
IPM combines monitoring, cultural, biological, and chemical controls.
,4. What does the term “economic threshold” mean?
A. The level at which plants die
B. The pest population level that justifies control
C. The maximum pesticide rate
D. The cost of pesticides
Answer: B. The pest population level that justifies control
Treatment is recommended when pest levels may cause economic
loss.
5. Which insect causes serpentine tunnels inside leaves?
A. Leaf miner
B. Thrips
C. Mealybug
D. Scale
Answer: A. Leaf miner
Larvae feed between leaf surfaces, creating visible trails.
6. Root rot in nursery plants is most often caused by:
A. Viruses
B. Fungi and water molds
C. Insects
D. Nutrient deficiencies
Answer: B. Fungi and water molds
Pathogens like Pythium and Phytophthora thrive in wet soils.
7. Overwatering increases risk of:
A. Spider mites
B. Root diseases
C. Thrips
D. Leaf scorch
, Answer: B. Root diseases
Excess moisture promotes fungal and oomycete pathogens.
8. Which pest produces fine webbing on leaves?
A. Aphids
B. Spider mites
C. Scale insects
D. Whiteflies
Answer: B. Spider mites
Webbing and stippling are classic mite symptoms.
9. Thrips damage typically appears as:
A. Large holes
B. Silver or bronzed streaks
C. Wilting stems
D. Root galls
Answer: B. Silver or bronzed streaks
Thrips rasp leaf surfaces and suck fluids.
10. The best way to confirm a disease diagnosis is to:
A. Guess based on symptoms
B. Increase fertilizer
C. Submit a sample to a diagnostic lab
D. Apply fungicide immediately
Answer: C. Submit a sample to a diagnostic lab
Many diseases show similar symptoms; lab testing ensures accuracy.
11. Which cultural practice reduces foliar diseases?
A. Overhead watering at night
B. Good air circulation
Review with Answers and Rationales |
100% Pass Guaranteed | Graded A+
1. Which pest type feeds by piercing plant tissue and sucking sap?
A. Caterpillars
B. Beetles
C. Aphids
D. Cutworms
Answer: C. Aphids
Piercing-sucking insects remove plant sap, causing curling, yellowing,
and honeydew.
2. Honeydew and sooty mold are commonly associated with:
A. Thrips
B. Aphids and whiteflies
C. Leaf miners
D. Grasshoppers
Answer: B. Aphids and whiteflies
These pests excrete sugary honeydew that supports fungal growth.
3. The most effective long-term pest management strategy is:
A. Weekly pesticide applications
B. Integrated Pest Management (IPM)
C. Using the strongest pesticide available
D. Treating only after severe damage
Answer: B. Integrated Pest Management (IPM)
IPM combines monitoring, cultural, biological, and chemical controls.
,4. What does the term “economic threshold” mean?
A. The level at which plants die
B. The pest population level that justifies control
C. The maximum pesticide rate
D. The cost of pesticides
Answer: B. The pest population level that justifies control
Treatment is recommended when pest levels may cause economic
loss.
5. Which insect causes serpentine tunnels inside leaves?
A. Leaf miner
B. Thrips
C. Mealybug
D. Scale
Answer: A. Leaf miner
Larvae feed between leaf surfaces, creating visible trails.
6. Root rot in nursery plants is most often caused by:
A. Viruses
B. Fungi and water molds
C. Insects
D. Nutrient deficiencies
Answer: B. Fungi and water molds
Pathogens like Pythium and Phytophthora thrive in wet soils.
7. Overwatering increases risk of:
A. Spider mites
B. Root diseases
C. Thrips
D. Leaf scorch
, Answer: B. Root diseases
Excess moisture promotes fungal and oomycete pathogens.
8. Which pest produces fine webbing on leaves?
A. Aphids
B. Spider mites
C. Scale insects
D. Whiteflies
Answer: B. Spider mites
Webbing and stippling are classic mite symptoms.
9. Thrips damage typically appears as:
A. Large holes
B. Silver or bronzed streaks
C. Wilting stems
D. Root galls
Answer: B. Silver or bronzed streaks
Thrips rasp leaf surfaces and suck fluids.
10. The best way to confirm a disease diagnosis is to:
A. Guess based on symptoms
B. Increase fertilizer
C. Submit a sample to a diagnostic lab
D. Apply fungicide immediately
Answer: C. Submit a sample to a diagnostic lab
Many diseases show similar symptoms; lab testing ensures accuracy.
11. Which cultural practice reduces foliar diseases?
A. Overhead watering at night
B. Good air circulation
