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    Question

    ā€œFlared or openā€ squares, Premature boll opening

    and shedding sypmtoms caused by:Ā 
    A American bollworm Correct Answer Incorrect Answer
    B Pink bollworm Correct Answer Incorrect Answer
    C Tobacco caterpillar Correct Answer Incorrect Answer
    D Spotted bollworm Correct Answer Incorrect Answer
    E Leafhoppers Correct Answer Incorrect Answer

    Solution

    • Spotted bollworm:
    • Presence of bored flower buds (squares), bored bolls with larval frass at the entrance holes
    • Premature dropping of affected bolls
    • Premature opening of damaged bolls, which remain on plants.
    • Presence of badly damaged tissues including lint and seed in damaged bolls.

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