Question

Flared squares in cotton is caused by

• A. Spodoptera litura
• B. Helicoverpa armigera
• C. Earias vitella
• D. Pectinophora gossypiella

Hint:

Match the pest with the specific symptom:
Flared squares → Earias vitella,
Wilted leaves → Spodoptera,
Boll rot → Helicoverpa.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Cotton is a major cash crop affected by various pests.
"Flared squares" is a specific symptom of a particular pest attack.

Step 2: Key Approach:
Identify the pest associated with the symptom "flared squares".
This is an entomology question.

Step 3: Detailed Explanation:
Flared squares in cotton are caused by the spotted bollworm, Earias vitella.
The larvae feed on the squares (flower buds), causing them to flare open.
Spodoptera litura causes defoliation and cutting of seedlings.
Helicoverpa armigera causes boll damage and larval feeding on leaves and bolls.
Pectinophora gossypiella (pink bollworm) causes rosette blooms and damage to developing seeds.
Thus, Earias vitella is specifically known for flared squares.
Early identification of such symptoms is crucial for pest management.