Question:
Which of the following crop is sensitive to foliar nematodes?
Which of the following crop is sensitive to foliar nematodes?
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Remember ornamental pests:
- Chrysanthemum: Foliar nematodes (sensitive)
- Gladiolus: Stem nematode
- Rose: Aphids, mites, powdery mildew
- Tuberose: Thrips, aphids
- Carnation: Fusarium wilt
Foliar nematodes cause characteristic leaf spots in chrysanthemum.
- Chrysanthemum: Foliar nematodes (sensitive)
- Gladiolus: Stem nematode
- Rose: Aphids, mites, powdery mildew
- Tuberose: Thrips, aphids
- Carnation: Fusarium wilt
Foliar nematodes cause characteristic leaf spots in chrysanthemum.
Updated On: Aug 19, 2026
- Chrysanthemum
- Tuberose
- Rose
- Gladiolus
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
This question tests knowledge of ornamental pests and their susceptibility.
Step 2: Detailed Explanation:
Chrysanthemum is highly sensitive to foliar nematodes (Aphelenchoides ritzemabosi).
Symptoms of foliar nematode infection:
- Angled leaf spots (brown to black).
- Leaf yellowing and drying.
- Vein delimited chlorosis.
- Premature leaf drop.
- Stunted growth.
Other crops and their sensitivity:
- Tuberose (B): Not typically affected.
- Rose (C): Not primarily affected by foliar nematodes.
- Gladiolus (D): Affected by stem nematode (Ditylenchus) and other diseases.
Foliar nematode management:
- Sanitation (remove infected leaves).
- Use of resistant varieties.
- Soil sterilization.
Thus, chrysanthemum is most sensitive to foliar nematodes.
Step 3: Final Answer:
Thus, the crop sensitive to foliar nematodes is chrysanthemum, which corresponds to option (A).
[0.5cm]
This question tests knowledge of ornamental pests and their susceptibility.
Step 2: Detailed Explanation:
Chrysanthemum is highly sensitive to foliar nematodes (Aphelenchoides ritzemabosi).
Symptoms of foliar nematode infection:
- Angled leaf spots (brown to black).
- Leaf yellowing and drying.
- Vein delimited chlorosis.
- Premature leaf drop.
- Stunted growth.
Other crops and their sensitivity:
- Tuberose (B): Not typically affected.
- Rose (C): Not primarily affected by foliar nematodes.
- Gladiolus (D): Affected by stem nematode (Ditylenchus) and other diseases.
Foliar nematode management:
- Sanitation (remove infected leaves).
- Use of resistant varieties.
- Soil sterilization.
Thus, chrysanthemum is most sensitive to foliar nematodes.
Step 3: Final Answer:
Thus, the crop sensitive to foliar nematodes is chrysanthemum, which corresponds to option (A).
[0.5cm]
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