Question:
Red cotton bug is a serious pest of cotton.
Assertion A: It can be controlled by applying insecticide in soil.
Reason R: It lays eggs in/on soil.
In light of the above statements, choose the correct answer from the options given below:
Red cotton bug is a serious pest of cotton.
Assertion A: It can be controlled by applying insecticide in soil.
Reason R: It lays eggs in/on soil.
In light of the above statements, choose the correct answer from the options given below:
Assertion A: It can be controlled by applying insecticide in soil.
Reason R: It lays eggs in/on soil.
In light of the above statements, choose the correct answer from the options given below:
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Understanding where an insect pest completes its life cycle (e.g., egg-laying in the soil) is crucial for targeting chemical and cultural control measures at their most vulnerable stage.
Updated On: Aug 24, 2026
- Both A and R are correct
- A is correct but R is incorrect
- A is incorrect but R is correct
- Both A and R are incorrect
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
The Red Cotton Bug (*Dysdercus cingulatus*) is an economic pest of cotton that damages fiber quality by staining it and feeding on mature seeds.
Step 2: Detailed Explanation:
Let us analyze the pest's biology and management:
- Reason R: The female red cotton bug deposits its eggs in loose soil, under leaf litter, or in soil crevices. This is biologically correct.
- Assertion A: Because the eggs are laid in or on the soil surface, applying appropriate soil-active insecticides or dusts (such as Carbaryl) directly to the soil or raking the soil helps destroy the egg masses and newly hatched nymphs before they can climb onto the cotton plants. This is a highly effective control measure.
Therefore, both the Assertion and the Reason are correct, and the biological egg-laying habit of the pest is the direct reason why soil treatment works.
Step 3: Final Answer:
Both statements are correct, making Option (A) the correct choice.
The Red Cotton Bug (*Dysdercus cingulatus*) is an economic pest of cotton that damages fiber quality by staining it and feeding on mature seeds.
Step 2: Detailed Explanation:
Let us analyze the pest's biology and management:
- Reason R: The female red cotton bug deposits its eggs in loose soil, under leaf litter, or in soil crevices. This is biologically correct.
- Assertion A: Because the eggs are laid in or on the soil surface, applying appropriate soil-active insecticides or dusts (such as Carbaryl) directly to the soil or raking the soil helps destroy the egg masses and newly hatched nymphs before they can climb onto the cotton plants. This is a highly effective control measure.
Therefore, both the Assertion and the Reason are correct, and the biological egg-laying habit of the pest is the direct reason why soil treatment works.
Step 3: Final Answer:
Both statements are correct, making Option (A) the correct choice.
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