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  • ICAR and TNAU E-Course Summarized

    Summarized Notes
  • Tikka disease is in ___________

    Question: Tikka disease is in ___________

    Options:

    Wheat
    Rice
    Groundnut
    Pigeon pea

    🔑 Key Points
    → Tikka disease, also known as leaf-spot disease, is caused by two fungal pathogens:

    Early leaf spot: Cercopora arachidicola.
    Late leaf spot: Phacoisariopsis personata.
    → The disease affects the groundnut plant.
    📌 Important Points
    → Symptoms:

    The disease occurs on all above-ground parts of the plant but more severely on the leaves, with two distinct types of leaf spots.
    Early leaf spot:
    Circular-irregular in outline, 1-10 mm in diameter.
    The spot is reddish-brown or dark brown and surrounded by a yellow halo from the beginning on the upper surface of the leaves.
    Late leaf spot:
    Appears about 30 days later than the early leaf spot.
    The spots are smaller, circular, 1-6 mm in diameter, dark brown to black, and present only on the lower surface of the leaves.
    Spots are not surrounded by a yellow halo in the early stage.

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