Destruction of 50% maize plants in USA (1970) due to infection of
(a) Hemileia vastratrix
(b) Helminthosporium oryzae
(c) Claviceps purpurea
(d) Ustilago maydis
Answer. (d)
(85)
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Which one of the following group of fungi is sometimes known as "fungal waste basket"
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